Linux
What Process is Listening on That Port?
What you need to do to determine which process is listing on specific port
Determining Environment Variables of a Process
When you need to determine the environment variables of a Linux process but it doesn’t log them or otherwise provide them, follow these simple steps to get the environment variables with which the process was launched.
The ln Command - All About Links
Some notes I created, with examples, while doing a bit of studying
on the ln command.
Sorting Data from the CLI
Sometimes you just need to put a bit of text in order. This could me
numerically or alphbetically. If you need to do this from a shell script or
the terminal, the sort command and its friends can help.