How to use the at command: 2-Minute Linux Tips

This video tutorial explains how to use the 'at' command to schedule tasks for future execution. It covers the basic syntax, provides examples of scheduling tasks at specific times, and demonstrates how to execute commands and scripts. The tutorial concludes with an example of immediate script execution using 'at now'.

What command is used to send a message to all logged-in users?

What is the significance of using 'control D' in the context of the 'at' command?