Four Easy Fun Useful Things You Can Do With Linux
Today you get a hearty serving of some of my favorite tips and tricks, painstakingly accumulated and carefully squirreled away for a special occasion. Autumn is here, which is always special, so here they are.
Colorizing Remote BASH Prompt
When you get a bunch of remote SSH sessions going it's easy to lose track of where you really are, because all you see are boring old generic prompts. Sure, they show the hostnames, but it's still easy to get confused. Which can be a bit amusing when you issue a reboot command to the wrong computer, or send a cranky broadcast message to all users on the wrong system. An easy way to keep track is to colorize and customize the Bash prompt on your remote systems, so you can easily differentiate them from your local login. You can assign different colors and text for different machines and accounts. For example, you can make the prompt turn green and display the text "THIS IS AN SSH SESSION" by adding these lines to ~/.bashrc of your remote account:
Running a Local Timeserver the Easy Way
Keeping your LAN hosts synchronized is very important, and easy. It's more important for them to be synchronized to each other than to have the correct time, but there's no reason you can't have both.