If x=11 and y=6, then what is the exit status of the following expression?

        [ ! $x -gt 9 -a ! $y -ne 23 ]

Output of the following program?

Which statement is false?

Output of the following shell script code?

Condition to check whether file with name 'xyz' is a regular file?

Which statement is incorrect regarding if-then-fi?

Which loop is invalid?

What is the error in the following program?

What's the output assuming that the command line arguments are Unix shell scripting?

What is the output of the following program?

What is the error in the following program?