Pipes don't pass stuff via ARGV, you need to read from STDIN in order to get information from them. For example,

if you were to make a test file called test.pl with the lines
#!/usr/bin/perl -w
print <STDIN>;

in it, then do a "cat test.pl |./test.pl"
it would print:
#!/usr/bin/perl -w
print <STDIN>;

-Ryan

In reply to Re: Calling a Perl filter script from command line by Nakano
in thread Calling a Perl filter script from command line by osfameron

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