check if variable contains string bash
STRING='Hello world'
if [[ $STRING =~ "Hello" ]] ; then echo "It's here" ; ficheck if variable contains string bash
STRING='Hello world'
if [[ $STRING =~ "Hello" ]] ; then echo "It's here" ; fibash string contains
#!/bin/bash
STR='GNU/Linux is an operating system'
SUB='Linux'
if [[ "$STR" == *"$SUB"* ]]; then
echo "It's there."
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