Grep capture group

# matches and returns b
$ echo "abc" | grep -oP "a\K(b)(?=c)" 
b 
# no match
$ echo "abc" | grep -oP "z\K(b)(?=c)"
# no match
$ echo "abc" | grep -oP "a\K(b)(?=d)"

Source: stackoverflow.com

Similar codes

0 vote174 views1 answer
Remotelog muirey03 github
Shell/Bash
0 vote216 views1 answer
How to make jobs run synchronously on github actions
Shell/Bash
2 votes160 views2 answers
Install vue js ubuntu
Shell/Bash
0 vote164 views1 answer
Ubuntu date and time fix
Shell/Bash
11 votes194 views1 answer
Linux ls directories only
Shell/Bash
9 votes170 views2 answers
How to open appimage in linux
Shell/Bash
42 votes205 views5 answers
Homebrew
Shell/Bash
2 votes175 views6 answers
Git hub
Shell/Bash
0 vote170 views1 answer
Configure a subdomain apache windows
Shell/Bash
0 vote197 views1 answer
How to take array input in shell script
Shell/Bash