BASH IF SUBSTRING
string='Hi substring' #To check if string has "Mylong" substring do
if [[ $string == *"substring"* ]]; then
echo "String has substring"
fi
Armandres
string='Hi substring' #To check if string has "Mylong" substring do
if [[ $string == *"substring"* ]]; then
echo "String has substring"
fistring='Haystack';
if [[ $string =~ "Needle" ]]
then
echo "It's there!"
fi#!/bin/bash
STR='GNU/Linux is an operating system'
SUB='Linux'
if grep -q "$SUB" <<< "$STR"; then
echo "It's there"
fi
# 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#!/bin/bash
STR='GNU/Linux is an operating system'
SUB='Linux'
case $STR in
*"$SUB"*)
echo -n "It's there."
;;
esac