recursively add file extension to all files

bash file shell command-line file-extension
robjmills picture robjmills · Jul 10, 2009 · Viewed 84.3k times · Source

I have a few directories and sub-directories containing files with no file extension. I want to add .jpg to all the files contained within these directories. I've seen bash scripts for changing the file extension but not for just adding one. It also needs to be recursive, can someone help please?

Answer

Stephan202 picture Stephan202 · Jul 10, 2009

Alternative command without an explicit loop (man find):

find . -type f -exec mv '{}' '{}'.jpg \;

Explanation: this recursively finds all files (-type f) starting from the current directory (.) and applies the move command (mv) to each of them. Note also the quotes around {}, so that filenames with spaces (and even newlines...) are properly handled.

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