/Shell/Bash/Shell check if string contains substring

Shell check if string contains substring

Checking if a substring exists in a string bash

string='Haystack';

if [[ $string =~ "Needle" ]]
then
   echo "It's there!"
fi

Shell check if string contains substring

# Example usage:
FULLSTRING='Full string to search'
if [[ $FULLSTRING == *"ll str"* ]]; then
	echo "The substring 'll str' is in the full string."
fi

# Example to check for two substrings:
FULLSTRING='Full string to search'
if [[ $FULLSTRING == *"Full"* && $FULLSTRING == *"to"* ]]; then
	echo "The substrings 'Full' and 'to' are in the full string."
fi

# Note, see the following two links for why [[ ]] is used:
https://serverfault.com/questions/52034/what-is-the-difference-between-double-and-single-square-brackets-in-bash
http://mywiki.wooledge.org/BashFAQ/031

Source: stackoverflow.com

Similar codes

1 vote170 views9 answers
Linux command to show memory hardware
Shell/Bash
0 vote169 views1 answer
Git accept incoming changes for all
Shell/Bash
0 vote222 views1 answer
Bash variable name to function
Shell/Bash
0 vote163 views1 answer
Unable to upgrade Flutter: no origin repository configured.
Shell/Bash
9 votes178 views4 answers
How to see what files are committed in git
Shell/Bash
0 vote211 views1 answer
Sonarqube new project after creation in gitlab
Shell/Bash
2 votes233 views1 answer
Git orphan branch
Shell/Bash
0 vote176 views1 answer
Mac os chrome full screen hide
Shell/Bash
0 vote163 views2 answers
Git revert file to master
Shell/Bash
9 votes168 views3 answers
Change shell script to executable
Shell/Bash