Hoofdstuk 4 meerkeuze Flashcards
Select all the applications that provide access to the Command Line Interface (CLI)?
(choose two)
opera Virtual Terminal Terminal window firefox
Virtual Terminal
Terminal window
Which environment variable contains a list of directories that is searched for commands to execute?
PATH PS2 PS1 EXEC
PATH
Select the command that can report the location of a command:
what where which
which
A pair of single quotes ( ‘ ) will prevent the shell from interpreting any metacharacter.
True or False?
True False
True
A pair of double quotes ( ” ) will prevent the shell from interpreting any metacharacter.
True or False?
True False
False
Using a pair of back quotes ( ` ) will cause a shell to execute the back-quoted text as a command and substitute the output back into the original command.
True or False?
True False
True
Which of the following are glob characters?
(choose three)
The asterisk “*” The question mark “?” The dash character “-“ The square brackets “[” and “]”
The asterisk “*”
The question mark “?”
The square brackets “[” and “]”
The semicolon “;” can be used to separate multiple commands to be executed in order.
True or False?
True False
True
The double ampersand characters ( && ) are used to separate commands to be executed conditionally, where if the command to the left of the ampersands fails, then the command to the right of the ampersands will be executed.
True or False?
True False
False
To be able to output messages to the screen, use the _______ command:
display type print echo
echo
The _______ command will print a list of the commands that you’ve previously executed.
eval history list exec
history
To execute the same command as previously executed five commands ago, you would type:
&5 !-5 @-5 !5
!-5
The shell program interprets the commands you type into the terminal, into instructions that the Linux operating system can execute.
True or False?
True False
True
The acronym CLI stands for:
Command Line Interpreter Computer Link Interpreter Computer Line Interface Command Line Interface
Command Line Interface
Traditional UNIX command options used a single dash, like -a; _______ command options use two dashes like –all.
LINUX Kernel GNU shell
GNU