Which command will allow an administrator to adjust the number of mounts after which an existing filesystem will be checked by e2fsck?

While editing a file in vi, you realize that you are changing the wrong file.

What vi command sequence will allow you to quit without saving your changes?

Bob accidentally created the subdirectory bobsdir in his home directory. He tried to remove the subdirectory with the command rmdir bobsfile only to receive the error, "No such file or directory."

Which command will remove the directory?

What does the command mount a do?

Which of the following commands will send output from the program myapp to both stdout and the file file1.txt?

When reading man pages, a lot of extra characters are shown on screen.

Which of the following commands can help to deal with this problem?

Which of the following sed commands will replace all instances of the string foo with the string foobar changing the file file1.txt in place?

Which shell built-in command can be used to create a shortcut or pseudonym for a longer command? Assume a modern bourne-like shell, such as bash.

What command will print a list of usernames (first column) and their corresponding user id (uid, third column) from /etc/passwd?

Given the following output:

# myapp
[1]+ Stopped myapp
#

Which of the following commands will resume executing the stopped process while allowing the user to continue to type commands at the command prompt?