Critical gzip mistake (HELP!) - how to undo 'gzip -r ./'

Question

So I was hoping to make a gzipped backup of my entire directory stucture, but I was very stupid and issued the command 'gzip -r ./' hoping to add all files and folders to a single gzip archive. This obviously is very wrong, but before I had time to quit, it gzipped each of my files individually (recursively) and deleted the original. Now I have a file structure that is completely made up of gzipped files. Does anyone know the command to undo what I have done (ie. extract the gzip file in place and then delete the gzip file)?

I am desperate. Thanks x1000 in advance.

Edit: Greg, you are awesome. So simple, but 'gunzip -r ./' solved it! Thank you all very much!

Answer 1

To undo this, use the opposite command:

gunzip -r ./

Note that the original gzip command will skip over files that already have a .gz suffix, because there's no point in compressing them twice. However, the above gunzip command will decompress such files, because it doesn't know that gzip skipped them.