Cheat Sheet: Linux (on Raspberry Pi)

General & system status

One of the first things I do on almost every machine running Linux, is to install neofetch. If you ever need to find out specs of your machine, this is the way to go.

# Print out system information
neofetch

# Print free disk space
df -h

I also like to use a little tool called btop to check various metrics.

Attached Hardware

When it comes to attached hardware, the most common commands I use are the following:

# List all connected devices
lsblk

# List all connected devices with UUIDs
blkid

I recently learned that you can print out only USB and PCI devices with the following commands:

# List all USB devices
lsusb

# List all PCI devices
lspci

File system and permissions

When it comes to permissions in Linux I am a real dunce. That needs to change. Find out more about permissions in this article.

# Check permissions
ls -l

tmux

I discovered tmux, because after ssh-ing into my Raspberry Pi, I wanted to run commands, and do stuff while the commands where running. tmux allows you to split your window, created sessions and windows. The following commands are the ones I use most frequently. You can use tmux's sessions to run a process, detach from the session, and reattach to it later. If you want to learn more about tmux, check out the GitHub Wiki.

# split pane horizontally
ctrl + b & shit + %

# switch pane
ctrl + b & cursor

# create new window
ctrl + b & c

# detach from session
ctrl + b & d

# reattach to session mysession
mux a -t mysession

More Cheats to follow...