Sed repeat pattern

For using match in sed replacement, just border it with '\(' and '\)':
echo Before123 | sed 's/Before\([0-9]*\)/\1After/g'
123After	# number is matched withtin '\( \)' and replaced in '\1'
Example with 2 match replacements
echo a_b | sed 's/\(^.*\)_\(.*$\)/first is \1 and \2 is after/g'

Similar codes

0 vote222 views1 answer
Uninstall cinnamon
Shell/Bash
0 vote204 views2 answers
Failed to restart mongodb.service: Unit mongodb.service is masked.
Shell/Bash
35 votes197 views6 answers
Git reset file
Shell/Bash
7 votes235 views4 answers
Linux speed test
Shell/Bash
0 vote194 views1 answer
Gulp-gzip
Shell/Bash
1 vote194 views1 answer
Adoni check migration status
Shell/Bash
1 vote216 views1 answer
Ubuntu 20.04 uninstall imagemagick
Shell/Bash
0 vote157 views1 answer
Python3 -m venv
Shell/Bash
1 vote270 views1 answer
Rsync --iinclude
Shell/Bash
2 votes218 views2 answers
Install vue js ubuntu
Shell/Bash