How do I use equals and non equals in bash shell scripts?

shoebill

Equals == and Not equals !=

$ cat arithmetic.sh

if (( 10 == 10 ));then
echo "Equal pay for all"
fi

if (( 10 != 2 ));then
echo "Let's work towards equal pay"
fi

Running the script gives the following output:

$ ./arithmetic.sh
Equal pay for all
Let's work towards equal pay