From 6dec7992a8f85496ba404d874ea8129a65a2777b Mon Sep 17 00:00:00 2001
From: l <l>
Date: Tue, 31 Mar 2026 14:10:57 +0100
Subject: [PATCH 01/18] Add expected answers and test yaml

---
 .github/workflows/test-sdc-tasks.yml          | 59 ++++++++++++
 .gitignore                                    |  1 +
 .../individual-shell-tools/awk/script-01.sh   |  6 ++
 .../individual-shell-tools/awk/script-02.sh   | 12 +++
 .../individual-shell-tools/awk/script-03.sh   |  6 ++
 .../individual-shell-tools/awk/script-04.sh   |  3 +
 .../individual-shell-tools/awk/script-05.sh   |  6 ++
 .../awk/script-06-stretch.sh                  |  1 +
 .../individual-shell-tools/awk/script-06.sh   |  0
 .../awk/script-07-stretch.sh                  |  6 ++
 .../individual-shell-tools/cat/script-01.sh   |  1 +
 .../individual-shell-tools/cat/script-02.sh   |  5 ++
 .../individual-shell-tools/cat/script-03.sh   |  3 +
 .../cat/script-04-stretch.sh                  |  5 ++
 .../individual-shell-tools/grep/script-01.sh  |  6 ++
 .../individual-shell-tools/grep/script-02.sh  |  9 ++
 .../individual-shell-tools/grep/script-03.sh  |  1 +
 .../individual-shell-tools/grep/script-04.sh  | 10 +++
 .../individual-shell-tools/grep/script-05.sh  |  5 ++
 .../individual-shell-tools/grep/script-06.sh  |  2 +
 .../individual-shell-tools/grep/script-07.sh  |  3 +
 expect/individual-shell-tools/ls/script-01.sh |  5 ++
 expect/individual-shell-tools/ls/script-02.sh |  3 +
 expect/individual-shell-tools/ls/script-03.sh | 11 +++
 expect/individual-shell-tools/ls/script-04.sh |  8 ++
 .../individual-shell-tools/sed/script-01.sh   | 11 +++
 .../individual-shell-tools/sed/script-02.sh   | 11 +++
 .../individual-shell-tools/sed/script-03.sh   |  6 ++
 .../individual-shell-tools/sed/script-04.sh   | 11 +++
 .../individual-shell-tools/sed/script-05.sh   | 11 +++
 .../individual-shell-tools/sed/script-06.sh   | 11 +++
 expect/individual-shell-tools/wc/script-01.sh |  1 +
 expect/individual-shell-tools/wc/script-02.sh |  1 +
 expect/individual-shell-tools/wc/script-03.sh |  4 +
 expect/jq/script-01.sh                        |  1 +
 expect/jq/script-02.sh                        |  1 +
 expect/jq/script-03.sh                        |  2 +
 expect/jq/script-04.sh                        |  6 ++
 expect/jq/script-05.sh                        |  6 ++
 expect/jq/script-06.sh                        |  6 ++
 expect/jq/script-07.sh                        |  6 ++
 expect/jq/script-08.sh                        |  6 ++
 expect/jq/script-09.sh                        |  6 ++
 expect/jq/script-10.sh                        |  1 +
 expect/jq/script-11.sh                        |  1 +
 expect/shell-pipelines/ls-grep/script-01.sh   | 11 +++
 expect/shell-pipelines/ls-grep/script-02.sh   | 10 +++
 expect/shell-pipelines/ls-grep/script-03.sh   |  7 ++
 expect/shell-pipelines/ls-grep/script-04.sh   |  1 +
 .../sort-uniq-head-tail/script-01.sh          |  6 ++
 .../sort-uniq-head-tail/script-02.sh          |  6 ++
 .../sort-uniq-head-tail/script-03.sh          |  3 +
 .../sort-uniq-head-tail/script-04.sh          |  1 +
 .../sort-uniq-head-tail/script-05.sh          |  6 ++
 .../sort-uniq-head-tail/script-06.sh          |  2 +
 .../sort-uniq-head-tail/script-07.sh          |  2 +
 expect/shell-pipelines/tr/script-01.sh        | 11 +++
 expect/shell-pipelines/tr/script-02.sh        | 11 +++
 test-sdc.sh                                   | 90 +++++++++++++++++++
 59 files changed, 453 insertions(+)
 create mode 100644 .github/workflows/test-sdc-tasks.yml
 create mode 100755 expect/individual-shell-tools/awk/script-01.sh
 create mode 100755 expect/individual-shell-tools/awk/script-02.sh
 create mode 100755 expect/individual-shell-tools/awk/script-03.sh
 create mode 100755 expect/individual-shell-tools/awk/script-04.sh
 create mode 100755 expect/individual-shell-tools/awk/script-05.sh
 create mode 100755 expect/individual-shell-tools/awk/script-06-stretch.sh
 create mode 100644 expect/individual-shell-tools/awk/script-06.sh
 create mode 100755 expect/individual-shell-tools/awk/script-07-stretch.sh
 create mode 100755 expect/individual-shell-tools/cat/script-01.sh
 create mode 100755 expect/individual-shell-tools/cat/script-02.sh
 create mode 100755 expect/individual-shell-tools/cat/script-03.sh
 create mode 100755 expect/individual-shell-tools/cat/script-04-stretch.sh
 create mode 100755 expect/individual-shell-tools/grep/script-01.sh
 create mode 100755 expect/individual-shell-tools/grep/script-02.sh
 create mode 100755 expect/individual-shell-tools/grep/script-03.sh
 create mode 100755 expect/individual-shell-tools/grep/script-04.sh
 create mode 100755 expect/individual-shell-tools/grep/script-05.sh
 create mode 100755 expect/individual-shell-tools/grep/script-06.sh
 create mode 100755 expect/individual-shell-tools/grep/script-07.sh
 create mode 100755 expect/individual-shell-tools/ls/script-01.sh
 create mode 100755 expect/individual-shell-tools/ls/script-02.sh
 create mode 100755 expect/individual-shell-tools/ls/script-03.sh
 create mode 100755 expect/individual-shell-tools/ls/script-04.sh
 create mode 100755 expect/individual-shell-tools/sed/script-01.sh
 create mode 100755 expect/individual-shell-tools/sed/script-02.sh
 create mode 100755 expect/individual-shell-tools/sed/script-03.sh
 create mode 100755 expect/individual-shell-tools/sed/script-04.sh
 create mode 100755 expect/individual-shell-tools/sed/script-05.sh
 create mode 100755 expect/individual-shell-tools/sed/script-06.sh
 create mode 100755 expect/individual-shell-tools/wc/script-01.sh
 create mode 100755 expect/individual-shell-tools/wc/script-02.sh
 create mode 100755 expect/individual-shell-tools/wc/script-03.sh
 create mode 100755 expect/jq/script-01.sh
 create mode 100755 expect/jq/script-02.sh
 create mode 100755 expect/jq/script-03.sh
 create mode 100755 expect/jq/script-04.sh
 create mode 100755 expect/jq/script-05.sh
 create mode 100755 expect/jq/script-06.sh
 create mode 100755 expect/jq/script-07.sh
 create mode 100755 expect/jq/script-08.sh
 create mode 100755 expect/jq/script-09.sh
 create mode 100755 expect/jq/script-10.sh
 create mode 100755 expect/jq/script-11.sh
 create mode 100755 expect/shell-pipelines/ls-grep/script-01.sh
 create mode 100755 expect/shell-pipelines/ls-grep/script-02.sh
 create mode 100755 expect/shell-pipelines/ls-grep/script-03.sh
 create mode 100755 expect/shell-pipelines/ls-grep/script-04.sh
 create mode 100755 expect/shell-pipelines/sort-uniq-head-tail/script-01.sh
 create mode 100755 expect/shell-pipelines/sort-uniq-head-tail/script-02.sh
 create mode 100755 expect/shell-pipelines/sort-uniq-head-tail/script-03.sh
 create mode 100755 expect/shell-pipelines/sort-uniq-head-tail/script-04.sh
 create mode 100755 expect/shell-pipelines/sort-uniq-head-tail/script-05.sh
 create mode 100755 expect/shell-pipelines/sort-uniq-head-tail/script-06.sh
 create mode 100755 expect/shell-pipelines/sort-uniq-head-tail/script-07.sh
 create mode 100755 expect/shell-pipelines/tr/script-01.sh
 create mode 100755 expect/shell-pipelines/tr/script-02.sh
 create mode 100755 test-sdc.sh

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
new file mode 100644
index 000000000..30369deaf
--- /dev/null
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -0,0 +1,59 @@
+name: Test SDC Tasks
+
+on:
+  pull_request_target:
+    types:
+      - labeled
+      - unlabeled
+      - opened
+      - edited
+      - reopened
+
+jobs:
+  test_sdc_tasks:
+
+    name: Test SDC Tasks
+    runs-on: ubuntu-slim
+    permissions:
+      pull-requests: write
+
+    steps:
+      - name: checkout pushed PR
+        uses: actions/checkout@v5
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v47.0.5
+      - name: test individual shell tools
+        if: contains(steps.changed-files.outputs.all_changed_files, 'individual-shell-tools/awk/script-01.sh')
+        run: ./test-sdc.sh individual-shell-tools
+        shell: bash
+      - name: test jq
+        if: contains(steps.changed-files.outputs.all_changed_files, 'jq/script-01.sh')
+        run: ./test-sdc.sh jq
+        shell: bash
+      - name: test shell-pipelines
+        if: contains(steps.changed-files.outputs.all_changed_files, 'shell-pipelines/ls-grep/script-01.sh')
+        run: ./test-sdc.sh shell-pipelines
+        shell: bash
+      - name: make output comment
+        if: contains(steps.changed-files.outputs.all_changed_files, 'individual-shell-tools/awk/script-01.sh') || contains(steps.changed-files.outputs.all_changed_files, 'jq/script-01.sh') || contains(steps.changed-files.outputs.all_changed_files, 'shell-pipelines/ls-grep/script-01.sh')
+        env:
+          GH_TOKEN: ${{ secrets.MY_TOKEN }}
+          ISSUE_URL: ${{ github.event.issue.html_url }}
+        run: |
+          gh issue comment $ISSUE_URL --body-FILE testoutput.TXT
+      - name: read test output
+        if: contains(steps.changed-files.outputs.all_changed_files, 'individual-shell-tools/awk/script-01.sh') || contains(steps.changed-files.outputs.all_changed_files, 'jq/script-01.sh') || contains(steps.changed-files.outputs.all_changed_files, 'shell-pipelines/ls-grep/script-01.sh')
+        id: read-test-output
+        run: |
+          echo 'testoutput<<EOF' >> $GITHUB_OUTPUT
+          cat testoutput.txt >> $GITHUB_OUTPUT
+          echo EOF >> $GITHUB_OUTPUT
+      - name: add appropriate labels
+        if: contains(steps.read-test-output.outputs.testoutput, 'complete!')
+        env:
+          GH_TOKEN: ${{ secrets.MY_TOKEN }}
+          ISSUE_URL: ${{ github.event.issue.html_url }}
+        run: |
+          gh issue edit $ISSUE_URL --add-label "Complete"
+          gh issue edit $ISSUE_URL --remove-label "Needs Review"
diff --git a/.gitignore b/.gitignore
index 3c3629e64..c4234ab74 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 node_modules
+testoutput.txt
diff --git a/expect/individual-shell-tools/awk/script-01.sh b/expect/individual-shell-tools/awk/script-01.sh
new file mode 100755
index 000000000..050f04374
--- /dev/null
+++ b/expect/individual-shell-tools/awk/script-01.sh
@@ -0,0 +1,6 @@
+Ahmed
+Basia
+Mehmet
+Leila
+Piotr
+Chandra
diff --git a/expect/individual-shell-tools/awk/script-02.sh b/expect/individual-shell-tools/awk/script-02.sh
new file mode 100755
index 000000000..44e2e83e2
--- /dev/null
+++ b/expect/individual-shell-tools/awk/script-02.sh
@@ -0,0 +1,12 @@
+Ahmed London
+Basia London
+Mehmet Birmingham
+Leila London
+Piotr Glasgow
+Chandra Birmingham
+Ahmed London
+Basia London
+Mehmet Birmingham
+Leila London
+Piotr Glasgow
+Chandra Birmingham
diff --git a/expect/individual-shell-tools/awk/script-03.sh b/expect/individual-shell-tools/awk/script-03.sh
new file mode 100755
index 000000000..f5d0b1f03
--- /dev/null
+++ b/expect/individual-shell-tools/awk/script-03.sh
@@ -0,0 +1,6 @@
+Ahmed 1
+Basia 22
+Mehmet 3
+Leila 1
+Piotr 15
+Chandra 12
diff --git a/expect/individual-shell-tools/awk/script-04.sh b/expect/individual-shell-tools/awk/script-04.sh
new file mode 100755
index 000000000..6e95a2f5c
--- /dev/null
+++ b/expect/individual-shell-tools/awk/script-04.sh
@@ -0,0 +1,3 @@
+Ahmed 4
+Basia 6
+Leila 1
diff --git a/expect/individual-shell-tools/awk/script-05.sh b/expect/individual-shell-tools/awk/script-05.sh
new file mode 100755
index 000000000..dd7e1d36c
--- /dev/null
+++ b/expect/individual-shell-tools/awk/script-05.sh
@@ -0,0 +1,6 @@
+Ahmed 3
+Basia 3
+Mehmet 3
+Leila 1
+Piotr 5
+Chandra 2
diff --git a/expect/individual-shell-tools/awk/script-06-stretch.sh b/expect/individual-shell-tools/awk/script-06-stretch.sh
new file mode 100755
index 000000000..fb1e7bc86
--- /dev/null
+++ b/expect/individual-shell-tools/awk/script-06-stretch.sh
@@ -0,0 +1 @@
+54
diff --git a/expect/individual-shell-tools/awk/script-06.sh b/expect/individual-shell-tools/awk/script-06.sh
new file mode 100644
index 000000000..e69de29bb
diff --git a/expect/individual-shell-tools/awk/script-07-stretch.sh b/expect/individual-shell-tools/awk/script-07-stretch.sh
new file mode 100755
index 000000000..33ff777a7
--- /dev/null
+++ b/expect/individual-shell-tools/awk/script-07-stretch.sh
@@ -0,0 +1,6 @@
+Ahmed 15
+Basia 37
+Mehmet 32
+Leila 1
+Piotr 61
+Chandra 18
diff --git a/expect/individual-shell-tools/cat/script-01.sh b/expect/individual-shell-tools/cat/script-01.sh
new file mode 100755
index 000000000..ed7bf7d08
--- /dev/null
+++ b/expect/individual-shell-tools/cat/script-01.sh
@@ -0,0 +1 @@
+Once upon a time...
diff --git a/expect/individual-shell-tools/cat/script-02.sh b/expect/individual-shell-tools/cat/script-02.sh
new file mode 100755
index 000000000..769b7e08c
--- /dev/null
+++ b/expect/individual-shell-tools/cat/script-02.sh
@@ -0,0 +1,5 @@
+Once upon a time...
+There was a house made of gingerbread.
+It looked delicious.
+I was tempted to take a bite of it.
+But this seemed like a bad idea...
diff --git a/expect/individual-shell-tools/cat/script-03.sh b/expect/individual-shell-tools/cat/script-03.sh
new file mode 100755
index 000000000..f97bd500a
--- /dev/null
+++ b/expect/individual-shell-tools/cat/script-03.sh
@@ -0,0 +1,3 @@
+     1	It looked delicious.
+     2	I was tempted to take a bite of it.
+     3	But this seemed like a bad idea...
diff --git a/expect/individual-shell-tools/cat/script-04-stretch.sh b/expect/individual-shell-tools/cat/script-04-stretch.sh
new file mode 100755
index 000000000..6f35e89d2
--- /dev/null
+++ b/expect/individual-shell-tools/cat/script-04-stretch.sh
@@ -0,0 +1,5 @@
+     1	Once upon a time...
+     2	There was a house made of gingerbread.
+     3	It looked delicious.
+     4	I was tempted to take a bite of it.
+     5	But this seemed like a bad idea...
diff --git a/expect/individual-shell-tools/grep/script-01.sh b/expect/individual-shell-tools/grep/script-01.sh
new file mode 100755
index 000000000..bc96ffe9e
--- /dev/null
+++ b/expect/individual-shell-tools/grep/script-01.sh
@@ -0,0 +1,6 @@
+Doctor: Hello
+Doctor: What's wrong today?
+Doctor: That sounds frustrating. When did this start?
+Doctor: Say "Hi".
+Doctor: You didn't say hello
+Doctor: You're welcome, goodbye
diff --git a/expect/individual-shell-tools/grep/script-02.sh b/expect/individual-shell-tools/grep/script-02.sh
new file mode 100755
index 000000000..bad606e1e
--- /dev/null
+++ b/expect/individual-shell-tools/grep/script-02.sh
@@ -0,0 +1,9 @@
+Doctor: Hello
+Patient: Hello Doctor
+Doctor: What's wrong today?
+Doctor: That sounds frustrating. When did this start?
+Doctor: Say "Hi".
+Doctor: You didn't say hello
+Doctor: You're welcome, goodbye
+Patient: I went to the doctor!
+Spouse: I'm glad you saw the Doctor: did they cure you?
diff --git a/expect/individual-shell-tools/grep/script-03.sh b/expect/individual-shell-tools/grep/script-03.sh
new file mode 100755
index 000000000..ec635144f
--- /dev/null
+++ b/expect/individual-shell-tools/grep/script-03.sh
@@ -0,0 +1 @@
+9
diff --git a/expect/individual-shell-tools/grep/script-04.sh b/expect/individual-shell-tools/grep/script-04.sh
new file mode 100755
index 000000000..5814afa2a
--- /dev/null
+++ b/expect/individual-shell-tools/grep/script-04.sh
@@ -0,0 +1,10 @@
+Doctor: What's wrong today?
+Doctor: That sounds frustrating. When did this start?
+Doctor: Say "Hi".
+Patient: Hi
+Patient: I seem to be cured!
+Doctor: You're welcome, goodbye
+
+Patient: I went to the doctor!
+Spouse: I'm glad you saw the Doctor: did they cure you?
+Patient: Yes!
diff --git a/expect/individual-shell-tools/grep/script-05.sh b/expect/individual-shell-tools/grep/script-05.sh
new file mode 100755
index 000000000..2ed07ed20
--- /dev/null
+++ b/expect/individual-shell-tools/grep/script-05.sh
@@ -0,0 +1,5 @@
+Doctor: You didn't say hello
+Patient: I seem to be cured!
+--
+Patient: I went to the doctor!
+Spouse: I'm glad you saw the Doctor: did they cure you?
diff --git a/expect/individual-shell-tools/grep/script-06.sh b/expect/individual-shell-tools/grep/script-06.sh
new file mode 100755
index 000000000..87b3a4f5e
--- /dev/null
+++ b/expect/individual-shell-tools/grep/script-06.sh
@@ -0,0 +1,2 @@
+dialogue-2.txt
+dialogue.txt
diff --git a/expect/individual-shell-tools/grep/script-07.sh b/expect/individual-shell-tools/grep/script-07.sh
new file mode 100755
index 000000000..aed78c634
--- /dev/null
+++ b/expect/individual-shell-tools/grep/script-07.sh
@@ -0,0 +1,3 @@
+dialogue-2.txt:2
+dialogue-3.txt:0
+dialogue.txt:6
diff --git a/expect/individual-shell-tools/ls/script-01.sh b/expect/individual-shell-tools/ls/script-01.sh
new file mode 100755
index 000000000..dd590d624
--- /dev/null
+++ b/expect/individual-shell-tools/ls/script-01.sh
@@ -0,0 +1,5 @@
+child-directory
+script-01.sh
+script-02.sh
+script-03.sh
+script-04.sh
diff --git a/expect/individual-shell-tools/ls/script-02.sh b/expect/individual-shell-tools/ls/script-02.sh
new file mode 100755
index 000000000..bfd087e6a
--- /dev/null
+++ b/expect/individual-shell-tools/ls/script-02.sh
@@ -0,0 +1,3 @@
+helper-1.txt
+helper-2.txt
+helper-3.txt
diff --git a/expect/individual-shell-tools/ls/script-03.sh b/expect/individual-shell-tools/ls/script-03.sh
new file mode 100755
index 000000000..36acd715f
--- /dev/null
+++ b/expect/individual-shell-tools/ls/script-03.sh
@@ -0,0 +1,11 @@
+.:
+child-directory
+script-01.sh
+script-02.sh
+script-03.sh
+script-04.sh
+
+./child-directory:
+helper-1.txt
+helper-2.txt
+helper-3.txt
diff --git a/expect/individual-shell-tools/ls/script-04.sh b/expect/individual-shell-tools/ls/script-04.sh
new file mode 100755
index 000000000..86e7570ec
--- /dev/null
+++ b/expect/individual-shell-tools/ls/script-04.sh
@@ -0,0 +1,8 @@
+First exercise (sorted newest to oldest):
+helper-3.txt
+helper-1.txt
+helper-2.txt
+Second exercise (sorted oldest to newest):
+helper-2.txt
+helper-1.txt
+helper-3.txt
diff --git a/expect/individual-shell-tools/sed/script-01.sh b/expect/individual-shell-tools/sed/script-01.sh
new file mode 100755
index 000000000..d92b03ab0
--- /dev/null
+++ b/expect/individual-shell-tools/sed/script-01.sh
@@ -0,0 +1,11 @@
+ThIs Is a sample fIle for experImentIng wIth sed.
+
+It contaIns many lInes, and there are some thIngs you may want to do wIth each of them.
+
+We'll Include some score InformatIon:
+37 AlIsha
+15 Jacob
+7 PIetro
+3 Katya
+
+We also should remember, when we go shoppIng, to get 4 Items: oranges,cheese,bread,olIves.
diff --git a/expect/individual-shell-tools/sed/script-02.sh b/expect/individual-shell-tools/sed/script-02.sh
new file mode 100755
index 000000000..e326bd4ab
--- /dev/null
+++ b/expect/individual-shell-tools/sed/script-02.sh
@@ -0,0 +1,11 @@
+This is a sample file for experimenting with sed.
+
+It contains many lines, and there are some things you may want to do with each of them.
+
+We'll include some score information:
+ Alisha
+ Jacob
+ Pietro
+ Katya
+
+We also should remember, when we go shopping, to get  items: oranges,cheese,bread,olives.
diff --git a/expect/individual-shell-tools/sed/script-03.sh b/expect/individual-shell-tools/sed/script-03.sh
new file mode 100755
index 000000000..088b17d55
--- /dev/null
+++ b/expect/individual-shell-tools/sed/script-03.sh
@@ -0,0 +1,6 @@
+This is a sample file for experimenting with sed.
+
+It contains many lines, and there are some things you may want to do with each of them.
+
+We'll include some score information:
+
diff --git a/expect/individual-shell-tools/sed/script-04.sh b/expect/individual-shell-tools/sed/script-04.sh
new file mode 100755
index 000000000..852fa1557
--- /dev/null
+++ b/expect/individual-shell-tools/sed/script-04.sh
@@ -0,0 +1,11 @@
+This is a sample file for experimenting with sed.
+
+It contains many lines, and there are some things you may want to do with each of them.
+
+We'll include some score information:
+37 Alisha
+15 Jacob
+7 Pietro
+3 Katya
+
+We also should remember, when we go shopping, to get 4 items: oranges,cheese,bread,olives.
diff --git a/expect/individual-shell-tools/sed/script-05.sh b/expect/individual-shell-tools/sed/script-05.sh
new file mode 100755
index 000000000..fe4d9d105
--- /dev/null
+++ b/expect/individual-shell-tools/sed/script-05.sh
@@ -0,0 +1,11 @@
+This is a sample file for experimenting with sed.
+
+It contains many lines, and there are some things you may want to do with each of them.
+
+We'll include some score information:
+Alisha 37
+Jacob 15
+Pietro 7
+Katya 3
+
+We also should remember, when we go shopping, to get 4 items: oranges,cheese,bread,olives.
diff --git a/expect/individual-shell-tools/sed/script-06.sh b/expect/individual-shell-tools/sed/script-06.sh
new file mode 100755
index 000000000..d9f950fec
--- /dev/null
+++ b/expect/individual-shell-tools/sed/script-06.sh
@@ -0,0 +1,11 @@
+This is a sample file for experimenting with sed.
+
+It contains many lines, and there are some things you may want to do with each of them.
+
+We'll include some score information:
+37 Alisha
+15 Jacob
+7 Pietro
+3 Katya
+
+We also should remember, when we go shopping, to get 4 items: oranges, cheese, bread, olives.
diff --git a/expect/individual-shell-tools/wc/script-01.sh b/expect/individual-shell-tools/wc/script-01.sh
new file mode 100755
index 000000000..d1ad53e8b
--- /dev/null
+++ b/expect/individual-shell-tools/wc/script-01.sh
@@ -0,0 +1 @@
+19 ../helper-files/helper-3.txt
diff --git a/expect/individual-shell-tools/wc/script-02.sh b/expect/individual-shell-tools/wc/script-02.sh
new file mode 100755
index 000000000..6bd060b79
--- /dev/null
+++ b/expect/individual-shell-tools/wc/script-02.sh
@@ -0,0 +1 @@
+3 ../helper-files/helper-3.txt
diff --git a/expect/individual-shell-tools/wc/script-03.sh b/expect/individual-shell-tools/wc/script-03.sh
new file mode 100755
index 000000000..572716a44
--- /dev/null
+++ b/expect/individual-shell-tools/wc/script-03.sh
@@ -0,0 +1,4 @@
+  1   4  20 ../helper-files/helper-1.txt
+  1   7  39 ../helper-files/helper-2.txt
+  3  19  92 ../helper-files/helper-3.txt
+  5  30 151 total
diff --git a/expect/jq/script-01.sh b/expect/jq/script-01.sh
new file mode 100755
index 000000000..e16f4ed9b
--- /dev/null
+++ b/expect/jq/script-01.sh
@@ -0,0 +1 @@
+Selma
diff --git a/expect/jq/script-02.sh b/expect/jq/script-02.sh
new file mode 100755
index 000000000..18711affa
--- /dev/null
+++ b/expect/jq/script-02.sh
@@ -0,0 +1 @@
+35 Fashion Street, London, E1 6PX
diff --git a/expect/jq/script-03.sh b/expect/jq/script-03.sh
new file mode 100755
index 000000000..d63f6ec74
--- /dev/null
+++ b/expect/jq/script-03.sh
@@ -0,0 +1,2 @@
+Selma, Software Engineer
+Selma, Software Engineer
diff --git a/expect/jq/script-04.sh b/expect/jq/script-04.sh
new file mode 100755
index 000000000..050f04374
--- /dev/null
+++ b/expect/jq/script-04.sh
@@ -0,0 +1,6 @@
+Ahmed
+Basia
+Mehmet
+Leila
+Piotr
+Chandra
diff --git a/expect/jq/script-05.sh b/expect/jq/script-05.sh
new file mode 100755
index 000000000..ee7e0feb5
--- /dev/null
+++ b/expect/jq/script-05.sh
@@ -0,0 +1,6 @@
+Ahmed London
+Basia London
+Mehmet Birmingham
+Leila London
+Piotr Glasgow
+Chandra Birmingham
diff --git a/expect/jq/script-06.sh b/expect/jq/script-06.sh
new file mode 100755
index 000000000..f5d0b1f03
--- /dev/null
+++ b/expect/jq/script-06.sh
@@ -0,0 +1,6 @@
+Ahmed 1
+Basia 22
+Mehmet 3
+Leila 1
+Piotr 15
+Chandra 12
diff --git a/expect/jq/script-07.sh b/expect/jq/script-07.sh
new file mode 100755
index 000000000..59c783f1d
--- /dev/null
+++ b/expect/jq/script-07.sh
@@ -0,0 +1,6 @@
+Ahmed 4
+Basia 6
+Mehmet 17
+Leila 1
+Piotr 8
+Chandra 6
diff --git a/expect/jq/script-08.sh b/expect/jq/script-08.sh
new file mode 100755
index 000000000..dd7e1d36c
--- /dev/null
+++ b/expect/jq/script-08.sh
@@ -0,0 +1,6 @@
+Ahmed 3
+Basia 3
+Mehmet 3
+Leila 1
+Piotr 5
+Chandra 2
diff --git a/expect/jq/script-09.sh b/expect/jq/script-09.sh
new file mode 100755
index 000000000..33ff777a7
--- /dev/null
+++ b/expect/jq/script-09.sh
@@ -0,0 +1,6 @@
+Ahmed 15
+Basia 37
+Mehmet 32
+Leila 1
+Piotr 61
+Chandra 18
diff --git a/expect/jq/script-10.sh b/expect/jq/script-10.sh
new file mode 100755
index 000000000..fb1e7bc86
--- /dev/null
+++ b/expect/jq/script-10.sh
@@ -0,0 +1 @@
+54
diff --git a/expect/jq/script-11.sh b/expect/jq/script-11.sh
new file mode 100755
index 000000000..4e9bdff0c
--- /dev/null
+++ b/expect/jq/script-11.sh
@@ -0,0 +1 @@
+164
diff --git a/expect/shell-pipelines/ls-grep/script-01.sh b/expect/shell-pipelines/ls-grep/script-01.sh
new file mode 100755
index 000000000..5481774df
--- /dev/null
+++ b/expect/shell-pipelines/ls-grep/script-01.sh
@@ -0,0 +1,11 @@
+Ariane
+Daniel
+HoChiMinh
+KualaLumpur
+Levi
+London
+NewYork
+Niamh
+Olga
+York
+dHondt
diff --git a/expect/shell-pipelines/ls-grep/script-02.sh b/expect/shell-pipelines/ls-grep/script-02.sh
new file mode 100755
index 000000000..35f2e44e6
--- /dev/null
+++ b/expect/shell-pipelines/ls-grep/script-02.sh
@@ -0,0 +1,10 @@
+Ariane
+Daniel
+HoChiMinh
+KualaLumpur
+Levi
+London
+NewYork
+Niamh
+Olga
+York
diff --git a/expect/shell-pipelines/ls-grep/script-03.sh b/expect/shell-pipelines/ls-grep/script-03.sh
new file mode 100755
index 000000000..37ec45084
--- /dev/null
+++ b/expect/shell-pipelines/ls-grep/script-03.sh
@@ -0,0 +1,7 @@
+Ariane
+Daniel
+Levi
+London
+Niamh
+Olga
+York
diff --git a/expect/shell-pipelines/ls-grep/script-04.sh b/expect/shell-pipelines/ls-grep/script-04.sh
new file mode 100755
index 000000000..7f8f011eb
--- /dev/null
+++ b/expect/shell-pipelines/ls-grep/script-04.sh
@@ -0,0 +1 @@
+7
diff --git a/expect/shell-pipelines/sort-uniq-head-tail/script-01.sh b/expect/shell-pipelines/sort-uniq-head-tail/script-01.sh
new file mode 100755
index 000000000..a622bc929
--- /dev/null
+++ b/expect/shell-pipelines/sort-uniq-head-tail/script-01.sh
@@ -0,0 +1,6 @@
+Ahmed London 1 10 4
+Basia London 22 9 6
+Chandra Birmingham 12 6
+Leila London 1
+Mehmet Birmingham 3 12 17
+Piotr Glasgow 15 2 25 11 8
diff --git a/expect/shell-pipelines/sort-uniq-head-tail/script-02.sh b/expect/shell-pipelines/sort-uniq-head-tail/script-02.sh
new file mode 100755
index 000000000..c560f609b
--- /dev/null
+++ b/expect/shell-pipelines/sort-uniq-head-tail/script-02.sh
@@ -0,0 +1,6 @@
+Basia London 22 9 6
+Piotr Glasgow 15 2 25 11 8
+Chandra Birmingham 12 6
+Mehmet Birmingham 3 12 17
+Leila London 1
+Ahmed London 1 10 4
diff --git a/expect/shell-pipelines/sort-uniq-head-tail/script-03.sh b/expect/shell-pipelines/sort-uniq-head-tail/script-03.sh
new file mode 100755
index 000000000..52d05bc65
--- /dev/null
+++ b/expect/shell-pipelines/sort-uniq-head-tail/script-03.sh
@@ -0,0 +1,3 @@
+Basia London 22 9 6
+Piotr Glasgow 15 2 25 11 8
+Chandra Birmingham 12 6
diff --git a/expect/shell-pipelines/sort-uniq-head-tail/script-04.sh b/expect/shell-pipelines/sort-uniq-head-tail/script-04.sh
new file mode 100755
index 000000000..9c18f93d6
--- /dev/null
+++ b/expect/shell-pipelines/sort-uniq-head-tail/script-04.sh
@@ -0,0 +1 @@
+Piotr Glasgow 15 2 25 11 8
diff --git a/expect/shell-pipelines/sort-uniq-head-tail/script-05.sh b/expect/shell-pipelines/sort-uniq-head-tail/script-05.sh
new file mode 100755
index 000000000..5b6440e3f
--- /dev/null
+++ b/expect/shell-pipelines/sort-uniq-head-tail/script-05.sh
@@ -0,0 +1,6 @@
+Entry German
+Entry Mariana
+Entry Sally
+Exit German
+Exit Mariana
+Exit Sally
diff --git a/expect/shell-pipelines/sort-uniq-head-tail/script-06.sh b/expect/shell-pipelines/sort-uniq-head-tail/script-06.sh
new file mode 100755
index 000000000..93bd06bc8
--- /dev/null
+++ b/expect/shell-pipelines/sort-uniq-head-tail/script-06.sh
@@ -0,0 +1,2 @@
+      5 Entry
+      4 Exit
diff --git a/expect/shell-pipelines/sort-uniq-head-tail/script-07.sh b/expect/shell-pipelines/sort-uniq-head-tail/script-07.sh
new file mode 100755
index 000000000..93bd06bc8
--- /dev/null
+++ b/expect/shell-pipelines/sort-uniq-head-tail/script-07.sh
@@ -0,0 +1,2 @@
+      5 Entry
+      4 Exit
diff --git a/expect/shell-pipelines/tr/script-01.sh b/expect/shell-pipelines/tr/script-01.sh
new file mode 100755
index 000000000..8dea4ebf2
--- /dev/null
+++ b/expect/shell-pipelines/tr/script-01.sh
@@ -0,0 +1,11 @@
+Dear Yara,
+
+Mz apologies for sending this response so late. As zou know, there's been a lot going on.
+
+Unfortunatelz I don't think I'll be able to make it to Yimbabwe, but but sounds amaying.
+
+Hope zou're doing well, and enjoz the trip.
+
+Thanks,
+
+Karolina
diff --git a/expect/shell-pipelines/tr/script-02.sh b/expect/shell-pipelines/tr/script-02.sh
new file mode 100755
index 000000000..e00561af1
--- /dev/null
+++ b/expect/shell-pipelines/tr/script-02.sh
@@ -0,0 +1,11 @@
+Dear Zara,
+
+My apologies for sending this response so late. As you know, there's been a lot going on!
+
+Unfortunately I don't think I'll be able to make it to Zimbabwe, but but sounds amazing!
+
+Hope you're doing well, and enjoy the trip!
+
+Thanks,
+
+Karolina
diff --git a/test-sdc.sh b/test-sdc.sh
new file mode 100755
index 000000000..2d5341e83
--- /dev/null
+++ b/test-sdc.sh
@@ -0,0 +1,90 @@
+# This test file will be automatically run when you submit a pull request
+# You should not modify this file
+# You can run this file using ./test-sdc.sh task-directory-name to check your output
+# You can use it with the individual-shell-tools, jq, and shell-pipelines tasks
+
+rm testoutput.txt
+if [[ "$1" == "individual-shell-tools" ]]; then
+	cd individual-shell-tools
+	pass=0
+	total=0
+	for directory in */; do
+		cd $directory
+		if [ "$directory" == "helper-files/" ]; then
+			cd ..
+			continue
+		fi
+		for exercise in *.sh; do
+			total=$(($total+1))
+			./$exercise > ../../test.tmp
+			cmp ../../test.tmp ../../expect/individual-shell-tools/$directory$exercise --quiet
+			if [ $? -eq 0 ]; then
+				pass=$(($pass+1))
+			else
+				if [[ "$exercise" == *"stretch"* ]]; then
+					# echo "Stretch task $directory$exercise failing, you can ignore this if you did not attempt. If you didnt, please have the volunteer check this."
+					echo "" >> ../../testoutput.txt
+					total=$(($total-1))
+				else
+					echo "Failed $directory$exercise, please either attempt again or have the volunteer check this." >> ../../testoutput.txt
+				fi
+			fi
+		done
+		cd ..
+	done
+	cd ..
+	rm test.tmp
+	echo "You passed $pass/$total tasks." >> testoutput.txt
+	if [ $pass -ge $total ]; then
+		echo "This task is complete!" >> testoutput.txt
+	fi
+	cat testoutput.txt
+elif [[ "$1" == "shell-pipelines" ]]; then
+	cd shell-pipelines
+	pass=0
+	total=0
+	for directory in */; do
+		cd $directory
+		for exercise in *.sh; do
+			total=$(($total+1))
+			./$exercise > ../../test.tmp
+			cmp ../../test.tmp ../../expect/shell-pipelines/$directory$exercise --quiet
+			if [ $? -eq 0 ]; then
+				pass=$(($pass+1))
+			else
+				echo "Failed $directory$exercise, please either attempt again or have the volunteer check this." >> ../../testoutput.txt
+			fi
+		done
+		cd ..
+	done
+	cd ..
+	rm test.tmp
+	echo "You passed $pass/$total tasks." >> testoutput.txt
+	if [ $pass -eq $total ]; then
+		echo "This task is complete!" >> testoutput.txt
+	fi
+	cat testoutput.txt
+elif [[ "$1" == "jq" ]]; then
+	cd jq
+	pass=0
+	total=0
+	for exercise in *.sh; do
+		total=$(($total+1))
+		./$exercise > ../test.tmp
+		cmp ../test.tmp ../expect/jq/$exercise --quiet
+		if [ $? -eq 0 ]; then
+			pass=$(($pass+1))
+		else
+			echo "Failed $directory$exercise, please either attempt again or have the volunteer check this." >> ../../testoutput.txt
+		fi
+	done
+	cd ..
+	rm test.tmp
+	echo "You passed $pass/$total tasks." >> testoutput.txt
+	if [ $pass -eq $total ]; then
+		echo "This task is complete!" >> testoutput.txt
+	fi
+	cat testoutput.txt
+else
+	echo "Please run this with a valid test directory name as argument"
+fi

From da754c458d55229ec73cd89cb7e13fb280435b27 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Tue, 31 Mar 2026 14:33:39 +0100
Subject: [PATCH 02/18] Simplify test yaml

---
 .github/workflows/test-sdc-tasks.yml | 15 ++++++---------
 test-sdc.sh                          | 19 ++++++++++++++++++-
 2 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 30369deaf..e2e992dba 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -8,6 +8,7 @@ on:
       - opened
       - edited
       - reopened
+      - synchronize
 
 jobs:
   test_sdc_tasks:
@@ -24,33 +25,29 @@ jobs:
         id: changed-files
         uses: tj-actions/changed-files@v47.0.5
       - name: test individual shell tools
+        id: test-individual-shell-tools
         if: contains(steps.changed-files.outputs.all_changed_files, 'individual-shell-tools/awk/script-01.sh')
         run: ./test-sdc.sh individual-shell-tools
         shell: bash
       - name: test jq
+        id: test-jq
         if: contains(steps.changed-files.outputs.all_changed_files, 'jq/script-01.sh')
         run: ./test-sdc.sh jq
         shell: bash
       - name: test shell-pipelines
+        id: test-shell-pipelines
         if: contains(steps.changed-files.outputs.all_changed_files, 'shell-pipelines/ls-grep/script-01.sh')
         run: ./test-sdc.sh shell-pipelines
         shell: bash
       - name: make output comment
-        if: contains(steps.changed-files.outputs.all_changed_files, 'individual-shell-tools/awk/script-01.sh') || contains(steps.changed-files.outputs.all_changed_files, 'jq/script-01.sh') || contains(steps.changed-files.outputs.all_changed_files, 'shell-pipelines/ls-grep/script-01.sh')
+        if: steps.test-individual-shell-tools.outputs.attempted == 'y' || steps.test-jq.outputs.attempted == 'y' || steps.test-shell-pipelines.outputs.attempted == 'y'
         env:
           GH_TOKEN: ${{ secrets.MY_TOKEN }}
           ISSUE_URL: ${{ github.event.issue.html_url }}
         run: |
           gh issue comment $ISSUE_URL --body-FILE testoutput.TXT
-      - name: read test output
-        if: contains(steps.changed-files.outputs.all_changed_files, 'individual-shell-tools/awk/script-01.sh') || contains(steps.changed-files.outputs.all_changed_files, 'jq/script-01.sh') || contains(steps.changed-files.outputs.all_changed_files, 'shell-pipelines/ls-grep/script-01.sh')
-        id: read-test-output
-        run: |
-          echo 'testoutput<<EOF' >> $GITHUB_OUTPUT
-          cat testoutput.txt >> $GITHUB_OUTPUT
-          echo EOF >> $GITHUB_OUTPUT
       - name: add appropriate labels
-        if: contains(steps.read-test-output.outputs.testoutput, 'complete!')
+        if: steps.test-individual-shell-tools.outputs.complete == 'y' || steps.test-jq.outputs.complete == 'y' || steps.test-shell-pipelines.outputs.complete == 'y'
         env:
           GH_TOKEN: ${{ secrets.MY_TOKEN }}
           ISSUE_URL: ${{ github.event.issue.html_url }}
diff --git a/test-sdc.sh b/test-sdc.sh
index 2d5341e83..f208705dc 100755
--- a/test-sdc.sh
+++ b/test-sdc.sh
@@ -23,7 +23,6 @@ if [[ "$1" == "individual-shell-tools" ]]; then
 			else
 				if [[ "$exercise" == *"stretch"* ]]; then
 					# echo "Stretch task $directory$exercise failing, you can ignore this if you did not attempt. If you didnt, please have the volunteer check this."
-					echo "" >> ../../testoutput.txt
 					total=$(($total-1))
 				else
 					echo "Failed $directory$exercise, please either attempt again or have the volunteer check this." >> ../../testoutput.txt
@@ -35,8 +34,14 @@ if [[ "$1" == "individual-shell-tools" ]]; then
 	cd ..
 	rm test.tmp
 	echo "You passed $pass/$total tasks." >> testoutput.txt
+	if [ -v GITHUB_OUTPUT ]; then
+		echo "attempted=y" >> "$GITHUB_OUTPUT"
+	fi
 	if [ $pass -ge $total ]; then
 		echo "This task is complete!" >> testoutput.txt
+		if [ -v GITHUB_OUTPUT ]; then
+			echo "complete=y" >> "$GITHUB_OUTPUT"
+		fi
 	fi
 	cat testoutput.txt
 elif [[ "$1" == "shell-pipelines" ]]; then
@@ -60,8 +65,14 @@ elif [[ "$1" == "shell-pipelines" ]]; then
 	cd ..
 	rm test.tmp
 	echo "You passed $pass/$total tasks." >> testoutput.txt
+	if [ -v GITHUB_OUTPUT ]; then
+		echo "attempted=y" >> "$GITHUB_OUTPUT"
+	fi
 	if [ $pass -eq $total ]; then
 		echo "This task is complete!" >> testoutput.txt
+		if [ -v GITHUB_OUTPUT ]; then
+			echo "complete=y" >> "$GITHUB_OUTPUT"
+		fi
 	fi
 	cat testoutput.txt
 elif [[ "$1" == "jq" ]]; then
@@ -81,8 +92,14 @@ elif [[ "$1" == "jq" ]]; then
 	cd ..
 	rm test.tmp
 	echo "You passed $pass/$total tasks." >> testoutput.txt
+	if [ -v GITHUB_OUTPUT ]; then
+		echo "attempted=y" >> "$GITHUB_OUTPUT"
+	fi
 	if [ $pass -eq $total ]; then
 		echo "This task is complete!" >> testoutput.txt
+		if [ -v GITHUB_OUTPUT ]; then
+			echo "complete=y" >> "$GITHUB_OUTPUT"
+		fi
 	fi
 	cat testoutput.txt
 else

From 43a83b77a537821107b9f1453462adf6f558f1fe Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 10:42:15 +0100
Subject: [PATCH 03/18] add debug step

---
 .github/workflows/test-sdc-tasks.yml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index e2e992dba..f70d4c577 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -24,6 +24,13 @@ jobs:
       - name: Get changed files
         id: changed-files
         uses: tj-actions/changed-files@v47.0.5
+      - name: List all changed files
+        env:
+          ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
+        run: |
+          for file in ${ALL_CHANGED_FILES}; do
+            echo "$file was changed"
+          done
       - name: test individual shell tools
         id: test-individual-shell-tools
         if: contains(steps.changed-files.outputs.all_changed_files, 'individual-shell-tools/awk/script-01.sh')

From 0aa66208c55dbe408d2562b3afae3e70c0b49e08 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 10:46:25 +0100
Subject: [PATCH 04/18] use correct changed files key

---
 .github/workflows/test-sdc-tasks.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index f70d4c577..30fd3311f 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -33,17 +33,17 @@ jobs:
           done
       - name: test individual shell tools
         id: test-individual-shell-tools
-        if: contains(steps.changed-files.outputs.all_changed_files, 'individual-shell-tools/awk/script-01.sh')
+        if: contains(steps.changed-files.outputs.modified_files, 'individual-shell-tools/awk/script-01.sh')
         run: ./test-sdc.sh individual-shell-tools
         shell: bash
       - name: test jq
         id: test-jq
-        if: contains(steps.changed-files.outputs.all_changed_files, 'jq/script-01.sh')
+        if: contains(steps.changed-files.outputs.modified_files, 'jq/script-01.sh')
         run: ./test-sdc.sh jq
         shell: bash
       - name: test shell-pipelines
         id: test-shell-pipelines
-        if: contains(steps.changed-files.outputs.all_changed_files, 'shell-pipelines/ls-grep/script-01.sh')
+        if: contains(steps.changed-files.outputs.modified_files, 'shell-pipelines/ls-grep/script-01.sh')
         run: ./test-sdc.sh shell-pipelines
         shell: bash
       - name: make output comment

From ba0cdb4bce1b91d40ae9ca1d5e9982c287e68627 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 10:52:14 +0100
Subject: [PATCH 05/18] get wider range of files

---
 .github/workflows/test-sdc-tasks.yml | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 30fd3311f..dc52bacca 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -24,26 +24,19 @@ jobs:
       - name: Get changed files
         id: changed-files
         uses: tj-actions/changed-files@v47.0.5
-      - name: List all changed files
-        env:
-          ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
-        run: |
-          for file in ${ALL_CHANGED_FILES}; do
-            echo "$file was changed"
-          done
       - name: test individual shell tools
         id: test-individual-shell-tools
-        if: contains(steps.changed-files.outputs.modified_files, 'individual-shell-tools/awk/script-01.sh')
+        if: contains(steps.changed-files.outputs.modified_files, 'individual-shell-tools/')
         run: ./test-sdc.sh individual-shell-tools
         shell: bash
       - name: test jq
         id: test-jq
-        if: contains(steps.changed-files.outputs.modified_files, 'jq/script-01.sh')
+        if: contains(steps.changed-files.outputs.modified_files, 'jq/')
         run: ./test-sdc.sh jq
         shell: bash
       - name: test shell-pipelines
         id: test-shell-pipelines
-        if: contains(steps.changed-files.outputs.modified_files, 'shell-pipelines/ls-grep/script-01.sh')
+        if: contains(steps.changed-files.outputs.modified_files, 'shell-pipelines/')
         run: ./test-sdc.sh shell-pipelines
         shell: bash
       - name: make output comment

From 83f3c56fec9210666e1efafaabd157dc4590b064 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 10:58:22 +0100
Subject: [PATCH 06/18] clean up test results printing

---
 .github/workflows/test-sdc-tasks.yml | 2 +-
 test-sdc.sh                          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index dc52bacca..9547e38e8 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -45,7 +45,7 @@ jobs:
           GH_TOKEN: ${{ secrets.MY_TOKEN }}
           ISSUE_URL: ${{ github.event.issue.html_url }}
         run: |
-          gh issue comment $ISSUE_URL --body-FILE testoutput.TXT
+          gh issue comment $ISSUE_URL --body-file testoutput.txt
       - name: add appropriate labels
         if: steps.test-individual-shell-tools.outputs.complete == 'y' || steps.test-jq.outputs.complete == 'y' || steps.test-shell-pipelines.outputs.complete == 'y'
         env:
diff --git a/test-sdc.sh b/test-sdc.sh
index f208705dc..d5c33c4ac 100755
--- a/test-sdc.sh
+++ b/test-sdc.sh
@@ -3,7 +3,7 @@
 # You can run this file using ./test-sdc.sh task-directory-name to check your output
 # You can use it with the individual-shell-tools, jq, and shell-pipelines tasks
 
-rm testoutput.txt
+echo "Results of test" > testoutput.txt
 if [[ "$1" == "individual-shell-tools" ]]; then
 	cd individual-shell-tools
 	pass=0

From 20c5a0f43b21dd93965b64b41dd5e6cb7b27bb7d Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 11:16:52 +0100
Subject: [PATCH 07/18] break the yaml file

---
 .github/workflows/test-sdc-tasks.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 9547e38e8..4106c915e 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -45,7 +45,7 @@ jobs:
           GH_TOKEN: ${{ secrets.MY_TOKEN }}
           ISSUE_URL: ${{ github.event.issue.html_url }}
         run: |
-          gh issue comment $ISSUE_URL --body-file testoutput.txt
+          gh issue comment $ISSUE_URL --body-ficle testoutput.txtc
       - name: add appropriate labels
         if: steps.test-individual-shell-tools.outputs.complete == 'y' || steps.test-jq.outputs.complete == 'y' || steps.test-shell-pipelines.outputs.complete == 'y'
         env:

From ea02b261faee0dbf7e11802787a2dd820d89b9e5 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 11:17:22 +0100
Subject: [PATCH 08/18] refix the yaml file

---
 .github/workflows/test-sdc-tasks.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 4106c915e..9547e38e8 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -45,7 +45,7 @@ jobs:
           GH_TOKEN: ${{ secrets.MY_TOKEN }}
           ISSUE_URL: ${{ github.event.issue.html_url }}
         run: |
-          gh issue comment $ISSUE_URL --body-ficle testoutput.txtc
+          gh issue comment $ISSUE_URL --body-file testoutput.txt
       - name: add appropriate labels
         if: steps.test-individual-shell-tools.outputs.complete == 'y' || steps.test-jq.outputs.complete == 'y' || steps.test-shell-pipelines.outputs.complete == 'y'
         env:

From 5fd41f2b7923421bd3f7f37f133ac38160002c7e Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 11:17:51 +0100
Subject: [PATCH 09/18] test capitalisation

---
 .github/workflows/test-sdc-tasks.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 9547e38e8..ef80c1155 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -45,7 +45,7 @@ jobs:
           GH_TOKEN: ${{ secrets.MY_TOKEN }}
           ISSUE_URL: ${{ github.event.issue.html_url }}
         run: |
-          gh issue comment $ISSUE_URL --body-file testoutput.txt
+          gh issue comment $ISSUE_URL --body-file testoutput.TXT
       - name: add appropriate labels
         if: steps.test-individual-shell-tools.outputs.complete == 'y' || steps.test-jq.outputs.complete == 'y' || steps.test-shell-pipelines.outputs.complete == 'y'
         env:

From 5093abe5f4134c0e4cfae9e7ccd447619d41cf59 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 11:18:35 +0100
Subject: [PATCH 10/18] refix the caps

---
 .github/workflows/test-sdc-tasks.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index ef80c1155..9547e38e8 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -45,7 +45,7 @@ jobs:
           GH_TOKEN: ${{ secrets.MY_TOKEN }}
           ISSUE_URL: ${{ github.event.issue.html_url }}
         run: |
-          gh issue comment $ISSUE_URL --body-file testoutput.TXT
+          gh issue comment $ISSUE_URL --body-file testoutput.txt
       - name: add appropriate labels
         if: steps.test-individual-shell-tools.outputs.complete == 'y' || steps.test-jq.outputs.complete == 'y' || steps.test-shell-pipelines.outputs.complete == 'y'
         env:

From 997bd7744bb754af742bb1b9195cea1c04290e6f Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 11:34:09 +0100
Subject: [PATCH 11/18] use pr event context

---
 .github/workflows/test-sdc-tasks.yml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 9547e38e8..feb2175e7 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -43,14 +43,14 @@ jobs:
         if: steps.test-individual-shell-tools.outputs.attempted == 'y' || steps.test-jq.outputs.attempted == 'y' || steps.test-shell-pipelines.outputs.attempted == 'y'
         env:
           GH_TOKEN: ${{ secrets.MY_TOKEN }}
-          ISSUE_URL: ${{ github.event.issue.html_url }}
+          ISSUE_URL: ${{ github.event.pull_request.html_url }}
         run: |
-          gh issue comment $ISSUE_URL --body-file testoutput.txt
+          gh pr comment $ISSUE_URL --body-file testoutput.txt
       - name: add appropriate labels
         if: steps.test-individual-shell-tools.outputs.complete == 'y' || steps.test-jq.outputs.complete == 'y' || steps.test-shell-pipelines.outputs.complete == 'y'
         env:
           GH_TOKEN: ${{ secrets.MY_TOKEN }}
-          ISSUE_URL: ${{ github.event.issue.html_url }}
+          ISSUE_URL: ${{ github.event.pull_request.html_url }}
         run: |
-          gh issue edit $ISSUE_URL --add-label "Complete"
-          gh issue edit $ISSUE_URL --remove-label "Needs Review"
+          gh pr edit $ISSUE_URL --add-label "Complete"
+          gh pr edit $ISSUE_URL --remove-label "Needs Review"

From 04fa17bf0cc7acc67215de36b49672ab03555576 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 11:36:39 +0100
Subject: [PATCH 12/18] use correct token

---
 .github/workflows/test-sdc-tasks.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index feb2175e7..df9137ae4 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -42,14 +42,14 @@ jobs:
       - name: make output comment
         if: steps.test-individual-shell-tools.outputs.attempted == 'y' || steps.test-jq.outputs.attempted == 'y' || steps.test-shell-pipelines.outputs.attempted == 'y'
         env:
-          GH_TOKEN: ${{ secrets.MY_TOKEN }}
+          GH_TOKEN: ${{ github.token }}
           ISSUE_URL: ${{ github.event.pull_request.html_url }}
         run: |
           gh pr comment $ISSUE_URL --body-file testoutput.txt
       - name: add appropriate labels
         if: steps.test-individual-shell-tools.outputs.complete == 'y' || steps.test-jq.outputs.complete == 'y' || steps.test-shell-pipelines.outputs.complete == 'y'
         env:
-          GH_TOKEN: ${{ secrets.MY_TOKEN }}
+          GH_TOKEN: ${{ github.token }}
           ISSUE_URL: ${{ github.event.pull_request.html_url }}
         run: |
           gh pr edit $ISSUE_URL --add-label "Complete"

From bbd54a6cf021945f74240016dcfae43b642c4a98 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 11:45:03 +0100
Subject: [PATCH 13/18] force red x on fail

---
 .github/workflows/test-sdc-tasks.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index df9137ae4..9d171d3c1 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -54,3 +54,7 @@ jobs:
         run: |
           gh pr edit $ISSUE_URL --add-label "Complete"
           gh pr edit $ISSUE_URL --remove-label "Needs Review"
+      - name: fail if not complete
+        if: (steps.test-individual-shell-tools.outputs.attempted == 'y' || steps.test-jq.outputs.attempted == 'y' || steps.test-shell-pipelines.outputs.attempted == 'y') && !(steps.test-individual-shell-tools.outputs.complete == 'y' || steps.test-jq.outputs.complete == 'y' || steps.test-shell-pipelines.outputs.complete == 'y')
+        run: |
+          exit -1

From 6465284bb6de089756983a38fce85f2b34ec7f71 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 11:56:01 +0100
Subject: [PATCH 14/18] add checkout step

---
 .github/workflows/test-sdc-tasks.yml | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 9d171d3c1..0b76d2358 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -19,11 +19,17 @@ jobs:
       pull-requests: write
 
     steps:
-      - name: checkout pushed PR
+      - name: checkout base branch
         uses: actions/checkout@v5
       - name: Get changed files
         id: changed-files
         uses: tj-actions/changed-files@v47.0.5
+      - name: checkout changed files
+        env:
+          GH_TOKEN: ${{ github.token }}
+          PR_NUM: ${{ github.event.pr.number }}
+        run: |
+          gh pr checkout $PR_NUM
       - name: test individual shell tools
         id: test-individual-shell-tools
         if: contains(steps.changed-files.outputs.modified_files, 'individual-shell-tools/')

From 1059cbcf7c6de5fc14e7cd8536f9b23a3a268e32 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 11:58:45 +0100
Subject: [PATCH 15/18] be inconsistent because github

---
 .github/workflows/test-sdc-tasks.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 0b76d2358..b505a63cd 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -27,7 +27,7 @@ jobs:
       - name: checkout changed files
         env:
           GH_TOKEN: ${{ github.token }}
-          PR_NUM: ${{ github.event.pr.number }}
+          PR_NUM: ${{ github.event.pull_request.number }}
         run: |
           gh pr checkout $PR_NUM
       - name: test individual shell tools

From 77a85d08feefbbaaac252680697bdd6e890767a5 Mon Sep 17 00:00:00 2001
From: l <l>
Date: Wed, 1 Apr 2026 12:05:11 +0100
Subject: [PATCH 16/18] try normal pr target

---
 .github/workflows/test-sdc-tasks.yml | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index b505a63cd..859f7e7bd 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -1,12 +1,10 @@
 name: Test SDC Tasks
 
 on:
-  pull_request_target:
+  pull_request:
     types:
       - labeled
-      - unlabeled
       - opened
-      - edited
       - reopened
       - synchronize
 
@@ -24,12 +22,6 @@ jobs:
       - name: Get changed files
         id: changed-files
         uses: tj-actions/changed-files@v47.0.5
-      - name: checkout changed files
-        env:
-          GH_TOKEN: ${{ github.token }}
-          PR_NUM: ${{ github.event.pull_request.number }}
-        run: |
-          gh pr checkout $PR_NUM
       - name: test individual shell tools
         id: test-individual-shell-tools
         if: contains(steps.changed-files.outputs.modified_files, 'individual-shell-tools/')

From 2f36a316c3e17e3fd83dac038d933998ada21aef Mon Sep 17 00:00:00 2001
From: LonMcGregor <3817332+LonMcGregor@users.noreply.github.com>
Date: Mon, 6 Apr 2026 11:59:42 +0100
Subject: [PATCH 17/18] Create pull request action (#1)

---
 .github/workflows/test-sdc-tasks.yml           | 4 +++-
 expect/individual-shell-tools/awk/script-02.sh | 6 ------
 expect/individual-shell-tools/awk/script-06.sh | 0
 3 files changed, 3 insertions(+), 7 deletions(-)
 delete mode 100644 expect/individual-shell-tools/awk/script-06.sh

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 859f7e7bd..64654be66 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -3,10 +3,12 @@ name: Test SDC Tasks
 on:
   pull_request:
     types:
-      - labeled
       - opened
+      - labeled
       - reopened
       - synchronize
+    paths:
+      - '**.sh'
 
 jobs:
   test_sdc_tasks:
diff --git a/expect/individual-shell-tools/awk/script-02.sh b/expect/individual-shell-tools/awk/script-02.sh
index 44e2e83e2..ee7e0feb5 100755
--- a/expect/individual-shell-tools/awk/script-02.sh
+++ b/expect/individual-shell-tools/awk/script-02.sh
@@ -4,9 +4,3 @@ Mehmet Birmingham
 Leila London
 Piotr Glasgow
 Chandra Birmingham
-Ahmed London
-Basia London
-Mehmet Birmingham
-Leila London
-Piotr Glasgow
-Chandra Birmingham
diff --git a/expect/individual-shell-tools/awk/script-06.sh b/expect/individual-shell-tools/awk/script-06.sh
deleted file mode 100644
index e69de29bb..000000000

From c6dc9c49b65fb7430821b4956ca5bb2d9bd1ee85 Mon Sep 17 00:00:00 2001
From: LonMcGregor <3817332+LonMcGregor@users.noreply.github.com>
Date: Tue, 7 Apr 2026 14:52:11 +0100
Subject: [PATCH 18/18] Lm binary task action (#2)

* number-systems qanda formatting

* numbers-expected

* num sys checker

* tests for numsys

* fix diffing

* test bin task action

* finalise readme for merge

---------

Co-authored-by: l <l>
---
 .github/workflows/test-sdc-tasks.yml |  7 ++-
 expect/number-systems/README.json    |  1 +
 number-systems/README.md             | 82 ++++++++++++++--------------
 test-sdc.sh                          | 27 +++++++++
 4 files changed, 75 insertions(+), 42 deletions(-)
 create mode 100644 expect/number-systems/README.json

diff --git a/.github/workflows/test-sdc-tasks.yml b/.github/workflows/test-sdc-tasks.yml
index 64654be66..e251e526e 100644
--- a/.github/workflows/test-sdc-tasks.yml
+++ b/.github/workflows/test-sdc-tasks.yml
@@ -39,8 +39,13 @@ jobs:
         if: contains(steps.changed-files.outputs.modified_files, 'shell-pipelines/')
         run: ./test-sdc.sh shell-pipelines
         shell: bash
+      - name: test number-systems
+        id: test-number-systems
+        if: contains(steps.changed-files.outputs.modified_files, 'number-systems/')
+        run: ./test-sdc.sh number-systems
+        shell: bash
       - name: make output comment
-        if: steps.test-individual-shell-tools.outputs.attempted == 'y' || steps.test-jq.outputs.attempted == 'y' || steps.test-shell-pipelines.outputs.attempted == 'y'
+        if: steps.test-individual-shell-tools.outputs.attempted == 'y' || steps.test-jq.outputs.attempted == 'y' || steps.test-shell-pipelines.outputs.attempted == 'y' || steps.test-number-systems.outputs.attempted == 'y'
         env:
           GH_TOKEN: ${{ github.token }}
           ISSUE_URL: ${{ github.event.pull_request.html_url }}
diff --git a/expect/number-systems/README.json b/expect/number-systems/README.json
new file mode 100644
index 000000000..f4bf38f5d
--- /dev/null
+++ b/expect/number-systems/README.json
@@ -0,0 +1 @@
+{"answers": [0, 1110, 45, 1000, "01011", 11111, 100010, 15, 8, 2, "(10$|10[^0-9])", "VOLUNTEER_CHECK", "E", 182, 902, 11, 33, "VOLUNTEER_CHECK", "VOLUNTEER_CHECK", "VOLUNTEER_CHECK", "VOLUNTEER_CHECK"]}
diff --git a/number-systems/README.md b/number-systems/README.md
index 77a3bde94..cb7ad070a 100644
--- a/number-systems/README.md
+++ b/number-systems/README.md
@@ -4,62 +4,62 @@ Do not convert any binary numbers to decimal when solving a question unless the
 
 The goal of these exercises is for you to gain an intuition for binary numbers. Using tools to solve the problems defeats the point.
 
-Convert the decimal number 14 to binary.
-Answer:
+Q1: Convert the decimal number 14 to binary.
+Answer: 
 
-Convert the binary number 101101 to decimal:
-Answer:
+Q2: Convert the binary number 101101 to decimal:
+Answer: 
 
-Which is larger: 1000 or 0111?
-Answer:
+Q3: Which is larger: 1000 or 0111?
+Answer: 
 
-Which is larger: 00100 or 01011?
-Answer:
+Q4: Which is larger: 00100 or 01011?
+Answer: 
 
-What is 10101 + 01010?
-Answer:
+Q5: What is 10101 + 01010?
+Answer: 
 
-What is 10001 + 10001?
-Answer:
+Q6: What is 10001 + 10001?
+Answer: 
 
-What's the largest number you can store with 4 bits, if you want to be able to represent the number 0?
-Answer:
+Q7: What's the largest number you can store with 4 bits, if you want to be able to represent the number 0?
+Answer: 
 
-How many bits would you need in order to store the numbers between 0 and 255 inclusive?
-Answer:
+Q8: How many bits would you need in order to store the numbers between 0 and 255 inclusive?
+Answer: 
 
-How many bits would you need in order to store the numbers between 0 and 3 inclusive?
-Answer:
+Q9: How many bits would you need in order to store the numbers between 0 and 3 inclusive?
+Answer: 
 
-How many bits would you need in order to store the numbers between 0 and 1000 inclusive?
-Answer:
+Q10: How many bits would you need in order to store the numbers between 0 and 1000 inclusive?
+Answer: 
 
-How can you test if a binary number is a power of two (e.g. 1, 2, 4, 8, 16, ...)?
-Answer:
+Q11: How can you test if a binary number is a power of two (e.g. 1, 2, 4, 8, 16, ...)?
+Answer: 
 
-Convert the decimal number 14 to hex.
-Answer:
+Q12: Convert the decimal number 14 to hex.
+Answer: 
+ 
+Q13: Convert the decimal number 386 to hex.
+Answer: 
 
-Convert the decimal number 386 to hex.
-Answer:
+Q14: Convert the hex number 386 to decimal.
+Answer: 
 
-Convert the hex number 386 to decimal.
-Answer:
+Q15: Convert the hex number B to decimal.
+Answer: 
 
-Convert the hex number B to decimal.
-Answer:
+Q16: If reading the byte 0x21 as a number, what decimal number would it mean?
+Answer: 
 
-If reading the byte 0x21 as a number, what decimal number would it mean?
-Answer:
+Q17: If reading the byte 0x21 as an ASCII character, what character would it mean?
+Answer: 
 
-If reading the byte 0x21 as an ASCII character, what character would it mean?
-Answer:
+Q18: If reading the byte 0x21 as a greyscale colour, as described in "Approaches for Representing Colors and Images", what colour would it mean?
+Answer: 
 
-If reading the byte 0x21 as a greyscale colour, as described in "Approaches for Representing Colors and Images", what colour would it mean?
-Answer:
+Q19: If reading the bytes 0xAA00FF as an RGB colour, as described in "Approaches for Representing Colors and Images", what colour would it mean?
+Answer: 
 
-If reading the bytes 0xAA00FF as an RGB colour, as described in "Approaches for Representing Colors and Images", what colour would it mean?
-Answer:
-
-If reading the bytes 0xAA00FF as a sequence of three one-byte decimal numbers, what decimal numbers would they be?
-Answer:
+Q20: If reading the bytes 0xAA00FF as a sequence of three one-byte decimal numbers, what decimal numbers would they be?
+Answer: 
diff --git a/test-sdc.sh b/test-sdc.sh
index d5c33c4ac..d4bd15de9 100755
--- a/test-sdc.sh
+++ b/test-sdc.sh
@@ -102,6 +102,33 @@ elif [[ "$1" == "jq" ]]; then
 		fi
 	fi
 	cat testoutput.txt
+elif [[ "$1" == "number-systems" ]]; then
+	pass=0
+	for question in $(seq 1 17); do
+		answer=$(jq -r ".answers[$question]" expect/number-systems/README.json)
+		if [[ "$answer" == "VOLUNTEER_CHECK" ]]; then
+			continue
+		fi
+		nextq=$(($question+1))
+		Q_START=$(grep -n "Q$question:" number-systems/README.md | cut -d: -f1)
+		ANS_START=$(($Q_START + 1))
+		NEXT_Q_START=$(grep -n "Q$nextq:" number-systems/README.md | cut -d: -f1)
+		ANS_END=$(($NEXT_Q_START - 1))
+		sed -n "$ANS_START,${ANS_END}p;${NEXT_Q_START}q" number-systems/README.md | cut -d: -f2- > answerfile
+		grep --quiet -iE $answer answerfile
+		if [ $? -eq 0 ]; then
+			pass=$(($pass+1))
+		else
+			echo "Please try Q$question again, or have the volunteer check this." >> testoutput.txt
+		fi
+		rm answerfile
+	done
+	echo "You passed $pass/20 tasks." >> testoutput.txt
+	if [ -v GITHUB_OUTPUT ]; then
+		echo "attempted=y" >> "$GITHUB_OUTPUT"
+	fi
+	echo "Please let a volunteer check the answers for questions 11, 17, 18, 19, and 20."
+	cat testoutput.txt
 else
 	echo "Please run this with a valid test directory name as argument"
 fi