Bash Shell Scripting- One-time task execution with at | scheduling job with at command to execute once

This video tutorial explains the differences between the AT and Crontab commands for scheduling tasks in Linux. It focuses on the AT command, providing syntax, examples, and various timing formats to schedule jobs. The tutorial demonstrates how to use the AT command to run shell scripts at specified times and how to manage scheduled jobs, including viewing and removing them.

What is the primary difference between the AT and crontab commands?

• Both are used for one-time tasks.

• AT is for recurring tasks, crontab is for one-time tasks.

• AT is for one-time tasks, crontab is for recurring tasks.

• Both are used for recurring tasks.

Which command is used to schedule a job to run only once?

• cron

• crontab

• at

• schedule

What is the correct syntax to schedule a job using the AT command?

• schedule [time] [command]

• at [command] [time]

• run [command] at [time]

• at [time] [command]

What should you do after entering the shell script in the AT prompt?

• Press Enter

• Type 'exit'

• Press Control + D

• Type 'run'

How can you view the list of jobs scheduled with the AT command?

• at -l

• atq

• at --list

• at jobs

What command is used to remove a scheduled job in AT?

• at delete

• at --remove

• atrm

• at -r

Which of the following is a valid time format for scheduling a job with AT?

• 10:00 AM

• 10 AM

• 10:00

• All of the above