/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

3 votes136 views1 answer
Git update local repo from master
Shell/Bash
0 vote134 views1 answer
Win terminal turn off screen
Shell/Bash
0 vote138 views1 answer
How to turn off mac display
Shell/Bash
4 votes135 views1 answer
Heroku install classic
Shell/Bash
0 vote157 views1 answer
Postman Collection Format v1 is no longer supported and can not be imported directly. You may convert your collection to Format v2 and try importing again.
Shell/Bash
228 votes330 views10 answers
Minesweeper
Shell/Bash
1 vote157 views2 answers
Shell get all lines that are in one file and not another
Shell/Bash
0 vote155 views1 answer
Remove last field using awk
Shell/Bash
0 vote152 views1 answer
Invalid base64 sqs
Shell/Bash
0 vote134 views1 answer
Flask make how public
Shell/Bash