basic

• Install package
  • For .deb
  • For .AppImage
• Fix package
• Manage process
• Useful command
  • grep
    • option
    • Example

Install package

For .deb

sudo dpkg -i *.deb

For .AppImage

chmod +777 *.AppImage
./*.AppImage

Fix package

sudo apt -f install
sudo apt update
sudo apt install [dependencies]
...
sudo apt install [package]

Manage process

See all the process:

ps aux

Find the target pid

pgrep [partial name] 

return the pid of the process
kill the process

kill [pid]

Useful command

grep

Search for confirmed strings in file

grep [option] [pattern] [file]

option

• -i: ignore capitalizing
• -v: inverse search
• -n: show the line num
• -f: reveral search of files in folder
• -i: only print the name od file
• -c: only print the line num

Example

display the battery percentage

upower -i /org/freedesktop/UPower/devices/battery_BAT0 | grep percentage