(C) 2003, Tim Maher       1-25       www.TeachMePerl.com
Perl as a Better Sed Command
File Editing Applications

NEW POLICY: Change "pants" to "trousers"

$ cat F
WORLDWIDE PANTS
SPONGEBOB SQUAREPANTS


$ sed 's/PANTS/TROUSERS/g' F  # file unchanged
WORLDWIDE TROUSERS
SPONGEBOB SQUARETROUSERS


$ perl -wlpi.bak -e 's/\bPANTS\b/TROUSERS/g;' F


$ cat F  # Perl can actually change original file!
WORLDWIDE TROUSERS
SPONGEBOB SQUAREPANTS

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