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- Stuff
- Wednesday, August 1st, 2007 at 1:43:53pm MDT
- -s enables rudimentary switch parsing for switches on the command
- line after the program name but before any filename arguments (or
- before an argument of --). Any switch found there is removed from
- @ARGV and sets the corresponding variable in the Perl program.
- The following program prints "1" if the program is invoked with a
- -xyz switch, and "abc" if it is invoked with -xyz=abc.
- #!/usr/bin/perl -s
- if ($xyz) { print "$xyz\n" }
- Do note that a switch like --help creates the variable ${-help},
- which is not compliant with "strict refs". Also, when using this
- option on a script with warnings enabled you may get a lot of spuâ
- rious "used only once" warnings.
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