Linux Commands On Pi

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Contents

Make Sure You are Up to Date


# remember to use >>
sudo apt-get update

sudo apt-get upgrade 

sudo raspi-config     # still works as alternative to command line 

Software install

Use the gui app or at command line

  • apt-get
  • pip

Misc Commands

  • ~ home directory
  • ./ current directory
  • ../ parent directory
  • ls list files, but may miss hidden ones then ???
  • cd
  • chmod +x filename +x make executable
  • ps -e what is running ( -e all users?? without just current )
  • top info on running processes in a nano like window exit with ctrl c
  • kill end a process using pid from above


cp copy files




Directories

  • mkdir make directory
  • rmdir – Remove Directories


Files

  • rm – Remove Files


  • mv – Move Files


  • trash from command line not so easy may be hidden /home/pi/.local/share/Trash may be a hint.

Note



mc – A Full File Manager
Midnight Commander is one of many fully featured file managers you can use from the Linux terminal. It isn’t installed by default on most distributions; here’s the command you’ll need to install it on Ubuntu:

sudo apt-get install mc

File Related

Editing

  • editing in gui leafpad file_name, or if protected sudo leafpad file_name
  • editing with no gui use nano same as above but a bit clunky, ctrl prefix to commands

Config Files

interfaces


#  sudo leafpad  /etc/network/interfaces

for Keyboard

#  sudo leafpad  /etc/default/keyboard	

XKBLAYOUT="us"

for WiFi wpa_supplicant.conf


# for info
sudo iwlist wlan0 scan

Go to the bottom of the file and add the following:

#  sudo leafpad /etc/wpa_supplicant/wpa_supplicant.conf
# at bottom of file
# ok to have 2

network={
    ssid="The_ESSID_from_earlier"
    psk="Your_wifi_password"

network={
    ssid="The_ESSID_from_earlier"
    psk="Your_wifi_password"
}

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