Chapter 1

1. The error is in the second line: There should be no spaces in the variable declaration.

#!/bin/bash 
var1="Welcome to bash scripting ..." 
echo $var1 

2. The result will be Tuesday because the array is zero based.
3. There are two errors here: the first error is the space in the variable declaration and the second error is the usage of single quotes where we should use backticks instead.

Solution:

#!/bin/bash files='ls -la' echo $files

4. The value of b variable will be c and the value of c will be a.

Since we didn't use dollar signs in the assignment lines, the variable will take the character value instead of the integer value.