If you are using Arch Linux then here are some basic terminal commands, which you can use to control control Pacman (Arch’s package management program).

pacman -S prorgam   = install a program.

pacman -R program  = remove a program.

pacman -Ss program  = search a program from arch repositories.

pacman -Syy  = update repository sources.

pacman -Syyu  = upgrade packages to new versions.

pacman -Q >> list.txt  = view installed packages and save them to list.txt file.

pacman -Rscn = remove leftover packages Note: Use this command only if you are sure you will not need any cached packages.

Additional details

As Arch is a bleeding edge distribution, and as such constantly moving, always check potential news and warnings from https://www.archlinux.org/ before doing any major system upgrade. With the bleeding edge things can sometimes break down badly.