# Linux

## Filesystem

### Types

- **ext4**
- **btrfs**
- **zfs**
- **xfs**

### Structure

### Mounting

### Attributes

## Shell

### Types

### Shortcuts

## Processes

### Foreground & background

### Services & systemd

## Administration

### Installing software

#### packages

#### archives

#### source


## Applications

### `tmux`

### `vim`

## Commands

- `ls` - 
- `cd` -
- `cat` -
- `tac` - 
- `more` -
- `less` -
- `cut` -
- `head` -
- `tail` -
- `diff` -
- `wc` -
- `grep` -
- `find` -
- `chmod` -
- `chown` -
- `chmod` -
- `rm` -
- `rmdir` -
- `touch` -
- `mkdir` -
- `ln` -
- `cp` -
- `mv` -
- `tar` -
- `gzip` -
- `zip` -
- `unzip` -
- `du` -
- `df` -
- `mount` -
- `umount` -
- `sed` -
- `history` -
- `sudo` -
- `su` -
- `passwd` -
- `passwd` -
- `ps` -
- `top` -
- `htop` -
- `which` -
- `kill` -
- `bg` -
- `fg` -
- `disown` -
- `sleep` -
- `lscpu` -
- `wall` -
- `shutdown` -
- `reboot` -
- `halt` -
- `ss` -
- `dig` -
- `curl` -
- `wget` -
- `ssh` -
- `tmux` -