Linux Bash Arithmetic Expressions Question: Download Linux Bash Arithmetic Expressions PDF

What is the output of this program?
If:
1) #!/bin/bash
2) a=2
3) b=4
4) let c=a**b
5) echo $c
6) exit 0

Options:
a) 8
b) 16
c) 32
d) none of the mentioned

b) 16

Explanation:
'**' is the exponentation operator in bash shell.
Output:
root@ubuntu:/home/google#./test.sh
16
root@ubuntu:/home/google#

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