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 vote220 views1 answer
Solr cloud cluster setup for windows
Shell/Bash
0 vote214 views2 answers
How to install enzyme
Shell/Bash
0 vote206 views1 answer
Sudo doesnt work on windows
Shell/Bash
0 vote212 views1 answer
Mover archivos de local a ssh
Shell/Bash
0 vote153 views1 answer
Import database via power shell
Shell/Bash
0 vote202 views1 answer
Iptables remove docker rules
Shell/Bash
3 votes207 views2 answers
Git clone with different name
Shell/Bash
1 vote209 views1 answer
'gh-pages' is not recognized as an internal or external command
Shell/Bash
0 vote197 views1 answer
Full path with linux find
Shell/Bash
0 vote219 views1 answer
Display used shell
Shell/Bash