Linux Shell Script - String Comparison with wildcards

Question

I am trying to see if a string is part of another string in shell script (#!bin/sh).

The code i have now is:

#!/bin/sh
#Test scriptje to test string         


        

Answer 1

In bash you can write (note the asterisks are outside the quotes)

    if [[ $t1 == *"$t2"* ]]; then
            echo "$t1 and $t2 are equal"
    fi

For /bin/sh, the = operator is only for equality not for pattern matching. You can use case though

case "$t1" in
    *"$t2"*) echo t1 contains t2 ;;
    *) echo t1 does not contain t2 ;;
esac

If you're specifically targetting linux, I would assume the presence of /bin/bash.