sys_nargs

#Sys.Nargs

##Syntax Sys.Nargs : int

##Description The Sys.Nargs function is used to determine the number of arguments that have been passed to a program from the command line. For example, if the program is run from the Turing environment using

then Sys.Nargs will return 2. If a program called prog.x is run under UNIX using this command:

the value of Sys.Nargs will similarly be 2.

The Sys.Nargs function is usually used together with the Sys.FetchArg function to access the arguments that have been passed to the program.

    :r file1 file2        prog.x file1 file2

##Status Exported qualified.

This means that you can only call the function by calling Sys.Nargs, not by calling Nargs.

##See also sys_fetcharg.html for an example of the use of .