This command marks you as away on the IRC server with the message you provide. This will provide an extra line in your whois information informing people that you are away and giving them the provided reason. To set an away status with the reason "Sleeping", you would run this command:
To change your away status, just run the command again with a different reason. To remove away, just run the away command with no arguments.
Using the away command to unset your away status will not work. Instead, issue this command: