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You can use the comparison operators in bash to create a boolean value as output.
For example, to check if two values are equal, you can use the double equal sign (==) and assign the result to a variable. The output will be either true (1) or false (0).
a=10
b=5
result=$((a == b))
echo $result # Outputs 0, which means false
Similarly, you can use other comparison operators such as -lt (less than), -gt (greater than), -le (less than or equal to), and -ge (greater than or equal to) to create boolean outputs.