Create a directory named assignment$3$ in your default directory.

Save all the files in assignment$3$ directory.

Problem $1$

Write a shell script whose single command line argument is a directory. Your script should perform the following:

$-$ If you run the program with more than one argument or no argument, the script should display an appropriate message.

If you run the script with a directory, the script should display the name of each subdirectory in that directory.

$-$ If the command line argument is not a directory, the script should display an appropriate message.

Note: your script should not prompt the user to enter a directory. It should be executed with arguments.

Save the script as problem$1.$sh in the assignment$3$ directory.

Problem $2$

Write a shell script whose single command line argument is a directory. Your script should perform the following:

$-$ If you run the program with more than one argument or no argument, the script should display an appropriate message.

If you run the script with a directory, the script should display the name and type of each item in that directory.

$-$ If the command line argument is not a directory, the script displays an appropriate message.

Sample output if the argument is a directory:

Name: Documents Type: directory

Name: sh$1.$sh Type: regular file

Save the script as problem$2.$sh in the assignment$3$ directory. Problem $3$

Write a shell script whose single command line argument is a directory. Your script should perform the following:

If you run the program with more than one argument or no argument, the script should display an appropriate message.

If you run the script with a directory, the script should display the number of subdirectories and the number of regular files in that directory.

$-$ If the command line argument is not a directory, the script should display an appropriate message.

Sample output if the argument is a directory:

Number of subdirectories: $10$ Number of regular files: $12$

Save the script as problem$3.$sh in the assignment$3$ directory.

Problem $4$

Write a shell script whose single command line argument is a directory. Your script should perform the following:

If you run the program with more than one argument or no argument, the script should display an appropriate message.

$\backslash (\backslash$square $\backslash )$ If you run the script with a directory, the script should display the number of empty files in that directory.

$-$ If the command line argument is not a directory, the script should display an appropriate message.

You may use the touch command to create empty files for testing.

Syntax: touch filename

Save the script as problem$4.$sh in the assignment$3$ directory.