In this example, we will change all files with extension ‘.info’ to ‘.txt’.
Rename all *.info files in one folder
rename .info .txt *.info
That should read as..
rename <replace this string> <with this string> <in all these files>
Do the same operation recursively in a directory tree
find . -name "*.info" -exec rename .info .txt {} \;
Those double quotes around *.info are important – don’t remove them mm-kay?
[tags]rename,multiple,command,linux,files[/tags]