Write shell scripts to accomplish the following system administration tasks:
MyExecutables: List all the executable files in the current working directory.
MyFiles <username> <directory>: Check the following attributes of a file in the specified directory:
The appropriate response must be provided for each of the above attributes.
Find out the biggest number from three given numbers. The numbers must be supplied as command line argument and an error must be printed if sufficient arguments are not supplied.
Ensure appropriate comments are within each script.
Each script with the associated output should be submitted.
Write a script using the while loop to display the numbers between 1 and 20 inclusively.
Use the for loop to accomplish the same output as number 1 above.
Write a script using the select loop to provide a choice of five lunch menu items and provide an appropriate response based on the user selection.
Note: The user should be prompted to make a selection.