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Last Updated: February 25, 2016
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· veejay
299c79e303215b061c976d8220b3b8bc

Replace a string recursively in a directory on Mac OS X

Pretty often in the development world, you want to replace a given string by another one in a bunch of files. Some people like do that with their favorite editors (using search/replace or "refactoring" tools in IDEs for example).

If for some reason you have to use the terminal for this, the following command allows you to replace string1 by string2:

find . -type f | xargs sed -i '' 's/string1/string2/g'

Note that this operation will silently replace string1 by string2 in all the files of the current directory, recursively.

To restrict the replacement to particular file extensions, use the additional -name flag as follows:

find . -type f -name "*.rb" | xargs sed -i '' 's/string1/string2/g'

Which will only replace string1 by string2 in Ruby files.

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