Delete everything before last / in bash

Question

I have many file paths in a file that look like so:

/home/rtz11/files/testfiles/547/prob547455_01

I want to use a bash script that will pri

Answer 1

Meandering but simply because I can remember the syntax I use:

cat file | rev | cut -d/ -f1 | rev

Many ways to skin a 'cat'. Ouch.