freebie:~ 716> perldoc -q 'delete a line'
Found in /System/Library/Perl/5.8.6/pods/perlfaq5.pod
       How do I change one line in a file/delete a line in a file/inse
+rt a
       line in the middle of a file/append to the beginning of a file?

       Use the Tie::File module, which is included in the standard dis
+tribu-
       tion since Perl 5.8.0.
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