Editing Files With a Perl One-Liner
If you have a group of files on which you’d like to perform a search-and-replace edit, try this handy Perl one-liner: $ perl -p -e 's/original/replacement/g' *.html This command will replace all occurences of the string “original” with the string “replacement” in all files named *.html. This command can also work with Perl’s powerful regular expression engine. If you’d like to save an unmodified copy of your files, try change the option like this: $ perl -p -i .bak -e 's/original/replacement/g' *.html This will make a copy of your original files with the .bak extension added, just in case your editing goes wrong.
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