Your organization routinely uses scripts, but as some employees have left, there are scripts that contain only command lines and no one is certain of their purpose. What steps can be taken to ensure a way for others to know the purpose of a script?

C. Require that script writers place comment lines inside the scripts using the # symbol to begin each command line.

Which of the following shells enable the use of scripts? (Choose all that apply.)

A. Bash
B. csh
D. zsh

You frequently use the command ls-a and want to save time by just entering l to do the same thing. Which of the following commands enables you to set your system to view hidden files by only entering l?

D. alias l= "ls -a"

You have written a script, but when you run it there is an error. Which of the following commands can you use to debug your script? (Choose all that apply.)

B. sh -v
D. sh -x

You have written a shell program that creates four temporary files. Which of the following commands can you use to remove these files when the script has completed its work?

A. trap

Which of the following commands work well for menus used in a script? (Choose all that apply.)

B. case

You are currently in the soruce directory, which is the new directory you have just created for storying and running your scripts. You want to make certain that the source directory is in your default path. Which of the following commands enable you to view the current default path settings?

D. echo $PATH

You have created a script for use by your entire department in a commonly accessed directory. Only you are able to run the script, which works perfectly. Which of the following is likely to be the problem?

B. You did not give all users in your department execute permissions for that script.

For which of the following logic structures used within a script if fi the final line for that