Linux Commands On Pi

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
• cd

• chmod
• ps -e what is running ( -e all users?? without just current )

• top info on running processes

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"
}