Using sed and regex to capture last part of url

Question

I'm trying to make sed match the last part of a url and output just that. For example:

echo "http://randomurl/suburl/file.mp3" | sed (expression)

should give the output:

file.mp3

So far I've tried sed 's|\([^/]+mp3\)$|\1|g' but it just outputs the whole url. Maybe there's something I'm not seeing here but anyways, help would be much appreciated!

Answer 1

this works:

 echo "http://randomurl/suburl/file.mp3" | sed 's#.*/##'

Answer 2

basename is your good friend.

> basename "http://randomurl/suburl/file.mp3"
=> file.mp3