Bash regex match after @

Question

I want to match a string after @ For example : stringZ="-p 2234 root@tor"

the result would be "tor"

The best I managed to do is : echo expr match "$stringZ" '\\(.*\\@\\)' which output: -p 2234 root@ How can I negate this?

Answer 1

You could just use the bash builtin string modification functionality:

echo "${stringZ##*@}"

Doesn't even require a regex, because, really what you are trying to do doesn't need one...

Answer 2

You can use sed :

echo '-p 2234 root@tor' | sed -r 's/.*@//'

Or if you had it in the stringZ variable:

newstring=$(echo stringZ | sed -r 's/.*@//')
echo $newstring