Replace Text in a File

To replace text in a single file or multiple files.

sed -i 's/foo/foo-bar/g' 96??.cfg

This will replace all the text that has foo with foo-bar in all files starting with 96 followed by any other 2 characters with a .cfg extension.

• -i = tell sed to edit the file(s)
• s = substitute the following text
• foo = what you want to substitute
• foo-bar = what you want to replace
• g = global, match all occurrences in the line