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 are the differences between the man utility and the info utility?

• Man utility is text based help files for a specific command; info utility is the same information but more wordy and emphasizes how to use the commands.

• Man utility is a measure of economic output; info utility is a measure of social impact.
• Man utility focuses on physical goods; info utility focuses on services.
• Man utility is based on information value; info utility is based on human effort.

What is the difference between whatis [keyword] command and apropos [keyword] command?

• whatis searches for commands related to a keyword; apropos gives a detailed description of a command.
• whatis gives a brief description of a command; apropos searches for commands related to a keyword.
• whatis and apropos are identical commands with no differences.
• whatis provides a detailed manual for a command; apropos lists all available commands.

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