The last command is a handy way to find out who has been connecting to a machine and when.
You can quickly kill everything running on a certain port with the following command.
Here’s how to install a package from a specific repository:
To get the MAC addresses of all your interfaces, grep the HWaddr from the ifconfig command:
Often times there is a very specific command you have entered into your bash prompt that you need to run again. You don’t want to have to type it again and s...