Question $1(7\mathrm{.}6$ points$)$

Listen

Review the BASH code and selec t the best answer to call the value of hobby?

hobby$=$"swimming"

Question $1$ options:

echo $Hobby

echo "hobby"

echo $swimming

echo $hobby

Question $2(8$ points$)$

Listen

What does the following command do in BASH? ps $-$u rtest $|$ more

Question $2$ options:

Prints out the the results of the ps command for the user rtest one screen at a time.

Writes a file called rtestMore.

Prints out the the results of the ps command for the user rtest and includes all processes from all users.

Prints out more details for the user rtest from the ps command.

Question $3(8$ points$)$

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What is the difference between echo $$\{$myArray$[$@$]\}$ and echo $$\{$myArray$[*]\}$ in your BASH script?

Question $3$ options:

For Loop Example with $\text{'}*\text{'},$ will echo individually each values

For Loop Exampe with $\text{'}$@$\text{'},$ will echo only once all the values

For Loop Example with $\text{'}$@$\text{'},$ will echo individually each values

For Loop Example with $\text{'}$@$\text{'}$ or $\text{'}*\text{'}$ will echo individually each values

Question $4(7\mathrm{.}6$ points$)$

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What command in BASH should you use to find additional information for the command ls$?$

Question $4$ options:

help ls

man ls

help man ls

ls is not a valid command in BASH..

Question $5(7\mathrm{.}6$ points$)$

Listen

What command do you type in BASH on a Linux system to retrive all basic system information?

Question $5$ options:

uname $-$all

uname

systemInfo

uname $-$a

Question $6(7\mathrm{.}6$ points$)$

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What command do you need to type in BASH to remove the value of the variable $mypet. You just typed mypet$=$fish.

Question $6$ options:

unset $mypet

unset $fish

unset mypet

unset fish

Question $7(7\mathrm{.}6$ points$)$

Listen

Which BASH command will print out all entires to the screen within the array superUsers $?$

Question $7$ options:

echo $$\{$superUsers$[0-3]\}$

echo $$\{$superUsers$[$@$]\}$

echo $$\{$superUsers$["$admin$1",$ "admin$2",$ "admin$3"]\}$

All of the answers are correct.

Question $8(7\mathrm{.}6$ points$)$

Listen

What command should you type to define a comment in your code when writing a BASH script?

Question $8$ options:

$!$

#

$\%$

$

Question $9(7\mathrm{.}6$ points$)$

Listen

What is the correct syntax to retrive the first key of an array called exploits in BASH?

Question $9$ options:

echo explots$[1]$

echo $$\{$explots$[0]\}$

echo explots$(1)$

echo $$($explots$(1))$

Question $10(7\mathrm{.}6$ points$)$

Listen

How do you retrive the Bash Array size? $($Array length$)$

Question $10$ options:

echo "myArray contain $$\{$#myArray$[""]\}$ elements"

echo "myArray contain $$\{$#myArray$[?]\}$ elements"

echo "myArray contain $$\{$#myArray$[*]\}$ elements"

echo "myArray contain $$\{$#myArray$(*)]$ elements"

Question $11(7\mathrm{.}6$ points$)$

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What command should you type to view the recent commands you typed in terminal on a Linux OS$?$

Question $11$ options:

last

history

man history

All of the answers are correct.

Question $12(8$ points$)$

Listen

What BASH command will generate an array called superUsers in BASH?

Question $12$ options:

superUser$=("$admin$1",$ "admin$2",$ "admin$3")$

superUser$=["$admin$1",$ "admin$2",$ "admin$3"]$

superUser$=[("$admin$1",$ "admin$2",$ "admin$3")]$

None of the answers listed are correct.

Question $13(7\mathrm{.}6$ points$)$

Listen

What command should you use to search for the process ID of the application Firefox in BASH?

Question $13$ options:

ps $-$u $`$whoami$`$ grep firefox

ps $`$user$`$ grep firefox

ps $-$u $`$whoami$`|$ grep firefox

ps $-$u $`$whoami$`|$ grep "firefox"