Perl read file
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How to identify if $param is a null value or empty value, same as [ -z from ksh? #!/usr/bin/perl ...
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passing argument to -l to set output record separator. $ seq 8 | perl -ne 'print if /[24]/' 2 4 $...
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If 0 or "0" are valid values for your variables, use defined instead: ... If 0 is a valid value f...
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Command line arguments are sent to a Perl program in the same way as in any other language. The @...
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