Which of the following commands shows ONLY the user id of Bob? (Select TWO)

CORRECT TEXT
The very first line of a shell script should always contain what two characters at the beginning of the line?

What command will allow you to see all of your environment variables?

A user complained that programs started from his shell won’t use his favorite editor. Which of the following files should you edit to change this?

What command prints available functions?

You are writing a script and want to test the exit status of a process. Which of the following is true?

You find you execute a series of commands on a recurring basis. You want this series of commands available from your login to run in the current shell. Choose
the best solution:

Choose THREE websites that provide Linux-related news and documentation.

CORRECT TEXT
Your users report that they are using the program dia to create diagrams. They are having problems with the software and they think there is a bug. What
command will give you help with functionality and contact information to report a possible bug?

Do not give the path or any options.

What file is typically used to display messages at the login prompt when remote users telnet in to the machine?