Quiz
REAL 4 NO EL ANTERIOR FAKE
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Perguntas do quiz (18)
1Select all the applications that provide access to the Command Line Interface (CLI)?
- Aopera
- BVirtual Terminal
- CTerminal
- Dfirefox
2Which environment variable contains a list of directories that is searched for commands to execute?
- APATH
- BPS2
- CPS1
- DEXEC
3Select the command that can report the location of a command:
- Awhat
- Bwhere
- Cwhich
4A pair of single quotes ( ‘ ) will prevent the shell from interpreting any metacharacter.
- AVerdadeiro
- BFalso
5A pair of double quotes ( ” ) will prevent the shell from interpreting any metacharacter.
- AVerdadeiro
- BFalso
6Using 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.
- AVerdadeiro
- BFalso
7Which of the following are glob characters?
- AThe asterisk “*”
- BThe question mark “?”
- CThe dash character “-“
- DThe square brackets “[” and “]”
8The semicolon “;” can be used to separate multiple commands to be executed in order.
- AVerdadeiro
- BFalso
9The 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.
- AVerdadeiro
- BFalso
10To be able to output messages to the screen, use the [blank_start]echo[blank_end] command:
- Aecho
- Bdisplay
- Ctype
- Dprint
11The [blank_start]history[blank_end] command will print a list of the commands that you’ve previously executed.
- Ahistory
- Beval
- Clist
- Dexec
12To execute the same command as previously executed five commands ago, you would type:
- A&5
- B!-5
- C@-5
- D!5
13The shell program interprets the commands you type into the terminal, into instructions that the Linux operating system can execute.
- AVerdadeiro
- BFalso
14The acronym CLI stands for:
- ACommand Line Interpreter
- BComputer Link Interpreter
- CComputer Line Interface
- DCommand Line Interface
15Traditional UNIX command options used a single dash, like -a; [blank_start]GNU[blank_end] command options use two dashes like –all.
- AGNU
- BLINUX
- CKernel
- Dshell
16The acronym GNU stands for:
- AGnu’s Not Unix
- BGood News Unix
- CGnu’s Nearly Unix
- DGo Next Unit
17The main purpose of using glob characters is to be able to provide a command a list of filenames.
- AVerdadeiro
- BFalso
18What one character treats the character that follows it as if it was surrounded by single quotes?
- A#
- B/
- C%
- D\
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