Linux Chapter 2 Review

What common shell type is the default shell used by most Linux systems?

• Bash
• Tcsh
• Fish
• Zsh

What command can be used to determine the current shell type?

• print $SHELL
• get current shell
• show shell type
• echo $0

What would you enter at the command prompt to display the current working directory?

• ls
• cd
• dir
• pwd

What single command in vi Editor will save the document changes and exit vi?

• save and quit
• :w!

• :wq
• :q

How can you list all the keystroke shortcuts in the nano text editor?

• Press 'Ctrl + X' to exit nano.
• Use 'Alt + H' to open help in nano.
• Press 'Ctrl + G' in nano to view all keystroke shortcuts.
• Type 'help' in the command line to see shortcuts.

Why is it important to type in the names of files and directory correctly in Linux?

• File names are case-sensitive in Linux.

• File names are case-insensitive in Linux.
• Typing errors are automatically corrected by the system.
• Directory names can be ignored when accessing files.

What command displays the contents of a directory including extended information?

• dir
• ls -a
• list -l
• ls -l

What command displays a list of the currently defined aliases on the system?

• list
• show aliases
• get aliases
• alias

You want to make an alias persistent across all reboots of your Linux server.

In which of the following files do you need to place the alias command to make the alias persistent?

• /etc/profile
• ~/.bash_profile
• /etc/bash

• /bash/profile

What is the function of the period before a file? example: .bashrc

• The period before a file indicates that it is a hidden file.
• The period signifies the file is a system file.
• The period indicates the file is executable.
• The period denotes the file is a temporary file.