# The ln Command

The ln command, whose function is to make links, confused me for the longest time. Here I will give an explanation of how this command works and why I will find myself using this in the future.

## Where does ln come in?

The ln command allows you to make “copies” of your data on your computer without taking up extra room. For example, I have a project where there are large data files in another directory but I would like to call everything within my own project folder to make it easier on my scripts. I could copy all of the data to my own folder but that would make unnecessary duplications of the data. Here is where ln comes in.

GNU parallel is a shell tool that allows you to execute jobs in parallel on one or more computers.
I have access to a Linux server, but I inconveniently do not have any root access. This means that installing software was a bit of a pain, because I could not use the usual apt-get command. Luckily, after many months of not using the server because I do not have root access, I have found the solution: Linuxbrew.