They use that to read they list of arguments from the command line.

No they don't :) See @ARGV, STDIN, ARGV, readline,
FMTYEWTK About Mass Edits In Perl
Uncommon* but Useful Perl Command Line Options for One-liners
Re^2: perl -pi -e s'/^\s+//'g $file
Beginning Perl (free) Chapter 6: Files and Data
Modern Perl: Chapter 9: Managing Real Programs > Files, Iterator::Diamond/Iterator::Files, magic-diamond <> behavior -- WHAT?!

In reply to Re: <> to read command line options? by Anonymous Monk
in thread <> to read command line options? by slackcub

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