/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

0 vote319 views1 answer
Virtualbox kernel driver not installed ubuntu
Shell/Bash
0 vote341 views1 answer
How to install voyager on existing project with dummy data
Shell/Bash
1 vote325 views1 answer
How to download terminator in ubuntu
Shell/Bash
64 votes325 views6 answers
Command to install requirements.txt
Shell/Bash
0 vote421 views2 answers
Dash bootstrap install
Shell/Bash
1 vote355 views1 answer
Show branch detail branch info in git
Shell/Bash
3 votes333 views2 answers
How to compile a java program in terminal
Shell/Bash
0 vote357 views1 answer
Install glfw debian
Shell/Bash
2 votes322 views1 answer
Vim tab 2 spaces
Shell/Bash
0 vote336 views1 answer
Pip install PyPortfolioOpt
Shell/Bash