Shell scripts are scripts that invoke a shell program. Which of the following invokes the Bourne shell program?

$1$ point

#$!/$bin$/$sh

#$!/$bin$/$zsh

#$!/$bin$/$bash

#$!/$bin$/$ksh

$2.$

Question $2$

What is one benefit of shell scripts over compiled languages?

$1$ point

Easier and faster to develop

Shorter runtimes

Interpreted at runtime

Listed line by line in text files

$3.$

Question $3$

Which symbol is used for chaining filter commands?

$1$ point

vertical bar $|$

colon :

plus sign $+$

equals sign $=$

$4.$

Question $4$

What results from chaining filters together?

$1$ point

Pipeline

Loader

Net

Multi$-$use script

$5.$

Question $5$

What symbol do you use to a define shell variable?

$1$ point

equal sign $=$

greater than symbol $>$

dollar sign $

plus sign $+$

$6.$

Question $6$

Which command lists all environment variables?

$1$ point

export

grep

env

$-$env

$7.$

Question $7$

Which of the following is a cron job syntax?

$1$ point

time day date command

m h dom mon dow command

command m h dom mon dow

crontab $-$e

$8.$

Question $8$

Scheduling cron jobs involves a series of steps. Which command opens the crontab configuration file using the default text editor?

$1$ point

edit crontab

crontab

crontab $-$e

cat crontab

$9.$

Question $9$

Quoting specifies whether the shell should interpret special characters as metacharacters, or $$escape$$ them. When used in conjunction with the echo command, which one of the following statements is true?

$1$ point

Double quotes are used to interpret all contents as literal characters

The backslash $\backslash$ will not escape metacharacters when used within single quotes.

You can use the backslash $\backslash$ to interpret a single character as a metacharacter

Single quotes are used to interpret all contents as literal characters.

$10.$

Question $10$

I$/$O redirection is a set of features that redirect either the standard input or the standard output. Which symbol redirects an error message to a file?

$1$ point

$<$

$>$

$>>$

$2>$