Software¶

Debian Packaged Software¶

Why have one program that does a few common sense things well when you can have multiple programs that do one or two things really badly!

Program	Description
apt-get	install: `apt-get install <prgm>`
	remove: `apt-get remove <prgm>` add `--purge` to remove configs
	upgrade: `apt-get upgrade <prgm>` to get latest
	update: `apt-get update` updates package databases
apt-cache	search for programs you can install: `apt-cache search <prgm>`
	info: `apt-cache showpkg [packagename]` displays package info
dpkg	list programs you have installed: `dpkg -l`

Updates, Search, and List¶

apt-get is a horrible program and a beautiful example of how not to design software. So if you want to know what packages are outdated, then you need to install this package:

sudo apt-get install apt-show-versions

Now to figure out what is outdated, do:

apt-show-versions -u

Now some packages will get kept back which seems to be some strange apt-get issue. To update your system completely, do:

sudo apt-get dist-upgrade

Or list all packages installed on the computer by:

dpkg -l

Raspbian¶

There is a lot of junk automatically installed on Raspbian, use dpkg -l to see. Suggest removal via sudo apt-get remove <pkg>:

isc-dhcp-server: Already have one on my network, don’t need another running (it is on by default)
sonic-pi: a music programming environment aimed at new programmers
printer-driver-*: don’t print anything
hplip*: HP printing stuff
cups cups-bsd cups-client cups-common cups-filters cups-ppdc: printing stuff
supercollider*: real-time audio synthesis programming language
samba-common: Windoze stuff
sane-utils: scanner stuff
penguinspuzzle: game
ghostscript