Package management in Ubuntu
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Package management in Ubuntu
Package management commands
Update package metadata
To get list of latest packages from repository servers use:
sudo apt-get update
Install package
To installing package use:
sudo apt-get install <package-name>
Searching package
To search for a package with name or word in description use:
apt-cache search <word>
List installed packages
To get list of all installed packages use:
dpkg --get-selections
Package information
To get information about package use:
apt-cache show <package-name>
Removing package cache
To delete complete cache, except locks, use:
apt-get clean
Removing obsolete packages
To remove packages that are no longer avaialble in parent repo for download from local apt-cache use:
apt-get autoclean
Package management tools
Package management tools supported by Ubuntu are:
- aptitude
- ncurses based
- synaptic
- Graphical
Learn more at https://help.ubuntu.com/community/AptGet/Howto
Miscellaneous issues
Copying apt-cache
To copy apt-cache from one machine to other so that the same packages do not get downloaded from Internet again copy contents of folder '/var/cache/apt' to other machine.
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