Mega Code Archive
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Perl
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Language Basics
Edit files using the -i option
#!/usr/local/bin/perl -i while ($line = <>) { while ($line =~ s#\d+\s*[*+-/]\s*\d+(\s*[*+-/]\s*\d+)*#
#) { eval ("\$result = $&;"); $line =~ s/
/$result/; } print ($line); }