If you're running on win32, the ikegami's shell solution won't work for you. However, you can achieve a similar affect by adding: @ARGV = map glob, @ARGV; at the top of your program.

A nice way to process a list of files is:

#! perl -slw
use strict;

BEGIN{
    @ARGV = map glob, @ARGV;
}

while( <> ) {
   ## here, $_ is every line of every file that matches the 
   ## wildcarded paths supplied in the command line
   if( /the search string/ ) {
         ## Do something
    }
}
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So c:>theScriptAbove.pl *.c *.h would read all C files and C header files in the current directory, and search each line of all of those files for "the search string"