This is another way to find out who your user is.
bash 07:15:16 Fri Jul 05 [homer@deep-thought $ who is linux homer pts/0 2013-07-05 19:10 (:0.0) |
And this command lists all logged in users on your Linux system.
bash 07:15:09 Fri Jul 05 [homer@deep-thought $ pinky Login Name TTY Idle When Where homer Homer Simpson tty7 00:33 2013-07-05 18:43 :0 homer Homer Simpson pts/0 2013-07-05 19:10 :0.0 |
The dpkg command that can be used to install software from Debian packages also has a command-line parameter that will list all files installed onto your computer system when a package is installed. Type dpkg -L {package name}
and this information will be printed. An example is below.
bash 07:23:08 Fri Jul 05 [homer@deep-thought $ dpkg -L freedoom /. /usr /usr/games /usr/games/freedoom /usr/share /usr/share/man /usr/share/man/man6 /usr/share/man/man6/freedoom.6.gz /usr/share/pixmaps /usr/share/pixmaps/freedoom.xpm /usr/share/games /usr/share/games/doom /usr/share/games/doom/freedoom.wad /usr/share/doc /usr/share/doc/freedoom /usr/share/doc/freedoom/copyright /usr/share/doc/freedoom/CREDITS.gz /usr/share/doc/freedoom/NEWS.gz /usr/share/doc/freedoom/README.gz /usr/share/doc/freedoom/changelog.Debian.gz /usr/share/applications /usr/share/applications/freedoom.desktop |
This is the command used to list packages according to a certain pattern.
bash 07:28:42 Fri Jul 05 [homer@deep-thought $ dpkg -l "freedoom" Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-=========================================-=========================-=========================-======================================================================================= ii freedoom 0.8~beta1-1 all free game files for the 3D game DOOM |
This is how to use wildcards to list packages using dpkg. The dpkg -l vim*
command lists all the package names that match this wildcard.
bash 07:30:23 Fri Jul 05 [homer@deep-thought $ dpkg -l vim* Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-=========================================-=========================-=========================-======================================================================================= un vim <none> (no description available) un vim-athena <none> (no description available) ii vim-common 2:7.3.547-6ubuntu5 amd64 Vi IMproved - Common files un vim-gnome <none> (no description available) un vim-gtk <none> (no description available) un vim-nox <none> (no description available) ii vim-tiny 2:7.3.547-6ubuntu5 amd64 Vi IMproved - enhanced vi editor - compact version |
Here I am searching for the package that contains the /bin/ls file. This is very useful when you want to remove a file and you are not sure which package it belongs to.
bash 07:33:17 Fri Jul 05 [homer@deep-thought $ dpkg -S "/bin/ls" coreutils: /bin/ls |
And to find out the status of an available package on a Debian system; you use this command.
bash 07:37:26 Fri Jul 05 [homer@deep-thought $ dpkg -s vim-common Package: vim-common Status: install ok installed Priority: important Section: editors Installed-Size: 296 Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com> Architecture: amd64 Source: vim Version: 2:7.3.547-6ubuntu5 Depends: libc6 (>= 2.3.4) Recommends: vim | vim-gnome | vim-gtk | vim-athena | vim-nox | vim-tiny Conffiles: /etc/vim/vimrc 682aa2a07693cc27756eee9751db3903 Description: Vi IMproved - Common files Vim is an almost compatible version of the UNIX editor Vi. . Many new features have been added: multi level undo, syntax highlighting, command line history, on-line help, filename completion, block operations, folding, Unicode support, etc. . This package contains files shared by all non GUI-enabled vim variants (vim and vim-tiny currently) available in Debian. Examples of such shared files are: manpages, common executables like xxd, and configuration files. Homepage: http://www.vim.org/ Original-Maintainer: Debian Vim Maintainers <pkg-vim-maintainers@lists.alioth.debian.org> |
You may also use the dpkg -C
command to check for broken packages on a Debian system. If any are found; type sudo apt-get -f install
to fix them.