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

1 vote330 views1 answer
Scheduler ubuntu cmd
Shell/Bash
0 vote350 views1 answer
Jetbrains always add disable
Shell/Bash
-1 vote307 views1 answer
Linux command ps -a
Shell/Bash
0 vote331 views1 answer
How to enable autostart apache
Shell/Bash
0 vote323 views1 answer
How to install red hawk
Shell/Bash
45 votes333 views1 answer
How to set up a git repo on terminal
Shell/Bash
0 vote310 views1 answer
Find directory spend inodes
Shell/Bash
10 votes330 views1 answer
Install wireshark on ubuntu
Shell/Bash
3 votes304 views3 answers
Git prune
Shell/Bash
0 vote319 views1 answer
How to enable or disable test mode on windows 10
Shell/Bash