The simple while (<>) {} was designed for this case. If you have no command line arguments, this reads from STDIN, otherwise treats all arguments in @ARGV as filenames, tries opening them and reads from all of them sequentially. See perldoc perlop under I/O Operators.

-- Hofmator

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In reply to Re: Using Getopt::Long it input different data sets by Hofmator
in thread Using Getopt::Long it input different data sets by chinamox

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