How can I find all of the distinct file extensions in a folder hierarchy?
On a Linux machine I would like to traverse a folder hierarchy and get a list of all of the distinct file extensions within it.
What would be the best way to achieve this from a shell?
Try this (not sure if it's the best way, but it works):
find . -type f | perl -ne 'print $1 if m/\.([^.\/]+)$/' | sort -u
It work as following:
- Find all files from current folder
- Prints extension of files if any
- Make a unique sorted list
No need for the pipe to sort, awk can do it all:
find . -type f | awk -F. '!a[$NF]++{print $NF}'