Read the doc! Perl comes with lots of docs.
man perl on a unix box or use the
Perl documentation that comes with the
Activestate on Windows.
perldoc system would work fine (make sure you
read how to avoid shell interpolation if you
run in an insecure context like CGI)
Lastly my $var= `wc -l file`; will
put the result of the command in $var.
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