Delete All base on filename extension in folder and subfolders

Using Terminal and Find command.

find . -iname '*.jpg' -type f -exec rm -f {} \;

This command starts in the current directory, recursing through the entire subtree, looking for files only that end with ‘.jpg’. It will delete any such files.

find – the find program
. – search the subtree starting in the current directory
-iname ‘*.jpg’ – find all elements that match the shell pattern ‘*.jpg’. This should be done case-INsensitively
-type f – only match files
-exec rm -f {} \; – execute the command “rm -f {}” for each matched file, where ‘{}’ is replaced with the name of the matched file.

Also adding an -delete it should do the same.

find /yourdirectory -iname '*.jpg' -delete