How to check if a string contains a substring in Bash
I have a string in Bash:
string="My string"
How can I test if it contains another string?
if [ $string ?? 'foo' ]; then
echo "It's there!"
fi
Where ?? is my unknown operator. Do I use echo and grep?
if echo "$string" | grep 'foo'; then
echo "It's there!"
fi
That looks a bit clumsy.