Relational Operators

== Equal $(( a == b ))
!= Not equal $(( a != b ))
< Less than $(( a < b ))
<= Less than equal $(( a <= b ))
> Greater than $(( a > b ))
=> Greater than equal $(( a >= b ))
#!/bin/bash
a=10; echo 'a =' $a
b=3; echo 'b =' $b
echo '$a < $b =' $(( a < b ))
echo '$a <= $b =' $(( a <= b ))
echo '$a == $b =' $(( a == b ))
echo '$a != $b =' $(( a != b ))
echo '$a > $b =' $(( a > b ))
echo '$a >= $b =' $(( a >= b ))

Returned results will be True 1 or False 0