RHCSA RHCSA Shell Scripting and Automation 2

Question 1

Which cron field order is correct when defining a cron job?

Accepted Answer

minute hour day month weekday

Answer

hour minute day month weekday

Answer

day month minute hour weekday

Answer

weekday month day hour minute

Question 2

What cron schedule expression runs a job every day at 2:30 AM?

Accepted Answer

30 2 * * *

Answer

2 30 * * *

Answer

* * 2 30 *

Answer

30 * 2 * *

Question 3

Which command lists all cron jobs for the current user?

Accepted Answer

crontab -l

Answer

crontab -e

Answer

crontab -r

Answer

crontab -v

Question 4

In a Bash `if` statement, which operator tests if two strings are equal?

Accepted Answer

==

Answer

=~

Answer

-eq

Answer

!=

Question 5

What does the `read` command do in a Bash script?

Accepted Answer

Reads input from stdin into a variable

Answer

Reads a file line by line

Answer

Outputs a variable value

Answer

Reads environment variables

Question 6

Which special variable in Bash holds the PID of the last background process?

Accepted Answer

$!

Answer

$?

Answer

$$

Answer

$-