apt-get update
refreshes package info
apt-get upgrade
will upgrade packages without installing new packages or removing old ones. keep the box ‘as it is’. Will fail if it needs a new package for dependency reasons
apt-get dist-upgrade
as above, except all dependencies are also installed
apt-cache search
gives info on the package. eg;
1
2
3
4
5
6
7
8
root@cube:/etc/apache2# apt-cache search mythtv
hdhomerun-config - Configuration utility for Silicon Dust HD HomeRun
hdhomerun-config-gui - GUI Configuration utility for Silicon Dust HD HomeRun
libhdhomerun-dev - Development library for Silicon Dust HD HomeRun
libhdhomerun1 - Library for Silicon Dust HD HomeRun
mythbuntu-bare-client - Mythbuntu Bare Client
mythbuntu-bare-console - Mythbuntu Bare Console
...
apt-cache show
shows detailed info on package. must supply package name. eg;
1
2
3
4
5
6
7
8
9
10
root@cube:/etc/apache2# apt-cache show mythtv
Package: mythtv
Priority: optional
Section: graphics
Installed-Size: 102
Maintainer: MythTV Ubuntu Maintainers <ubuntu-mythtv@lists.ubuntu.com>
Architecture: all
Version: 2:0.27.3+fixes.20140908.2d4a7c9-0ubuntu0mythbuntu2
Suggests: mythtv-doc
...