Linux chapter 4
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
he acronym CLI stands for: -Command Line Interpreter -Computer Link Interpreter -Computer Line Interface -Command Line Interface
-Command Line Interface
The acronym GNU stands for: -Gnu's Not Unix -Good News Unix -Gnu's Nearly Unix -Go Next Unit
-Gnu's Not Unix
Which environment variable contains a list of directories that is searched for commands to execute? -PATH -PS2 -PS1 -EXEC
-PATH
Which of the following are glob characters? (choose three) -The asterisk "*" -The mark "?" -The dash character "-" -The square brackets "[" and "]"
-The asterisk "*" -The mark "?" -The square brackets "[" and "]"
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
Select the command that can report the location of a command: -what -where -which
-which
A pair of double quotes ( " ) will prevent the shell from interpreting any metacharacter. True or False?
False
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?
False
Traditional UNIX command options used a single dash, like -a; _______ command options use two dashes like -all. -LINUX -Kernel -GNU -shell
GNU
A pair of single quotes ( ' ) will prevent the shell from interpreting any metacharacter. True or False?
True
The main purpose of using glob characters is to be able to provide a command a list of filenames. True or False?
True
The semicolon ";" can be used to separate multiple commands to be executed in order. True or False?
True
The shell program interprets the commands you type into the terminal, into instructions that the Linux operating system can execute. True or False?
True
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
