Commands using apt (48)

  • That command installs "most" and make this command as the default man reader. The "most" works like "less" (the current man reader), but it render colors for manpages and may do more things. Read "man most". You can see a preview here: http://www.dicas-l.com.br/dicas-l/20090718.php


    26
    apt-get install most && update-alternatives --set pager /usr/bin/most
    aurium · 2010-01-04 14:13:55 4

  • 12
    apt-get install `ssh root@host_you_want_to_clone "dpkg -l | grep ii" | awk '{print $2}'`
    TuxOtaku · 2011-05-10 13:33:51 3
  • Bash's here string


    11
    sudo -s <<< 'apt update -y && apt upgrade -y'
    metropolis · 2019-08-07 14:03:30 1

  • 7
    apt-get moo
    vavincavent · 2009-02-15 21:15:38 5
  • Requires: imagemagick and graphviz On Debian systems, displays a graph of package dependencies. Works also with other image formats, like svg : apt-cache dotty bash | dot -T svg | display


    7
    apt-cache dotty apache2 | dot -T png | display
    raphink · 2009-02-18 14:27:31 0
  • search ubuntu's remote package source repositories for a specific program to see which package contains it Show Sample Output


    7
    apt-file find bin/programname
    nickleus · 2009-11-10 10:21:45 2

  • 5
    apt-file search iostat
    tersmitten · 2011-07-24 11:56:31 3
  • Shows all configurations to apt and dpkg, rarely changed, you probably still have the default configuration. Go ahead and explore your configuration if you dare, perhaps change your apt-cache directory, Dir::Cache "var/cache/apt/"; or the names of the log files. Show Sample Output


    5
    apt-config dump
    LinuxMan · 2011-12-13 19:11:02 1

  • 4
    apt-cache stats
    0disse0 · 2009-09-03 19:29:17 0
  • This will take the packages matching a given `apt-cache search` query (a collection of AND'd words or regexps) and tell you how popular they are. This is particularly nice for those times you have to figure out which solution to use for e.g. a PDF reader or a VNC client. Substitute "ubuntu.com" for "debian.org" if you want this to use Ubuntu's data instead. Everything else will work perfectly. Show Sample Output


    4
    apt-popcon() { (echo \#rank; apt-cache search "$@" |awk '$1 !~ /^lib/ {print " "$1" "}') |grep -Ff- <(wget -qqO- http://popcon.debian.org/by_inst.gz |gunzip); }
    adamhotep · 2012-09-08 00:29:31 0
  • Create Debian package dependency graph using GraphViz


    3
    apt-cache dotty PKG-NAME | dot -Tpng | display
    auriza · 2010-01-02 16:20:56 1

  • 3
    apt-get --just-print upgrade
    noqqe · 2010-02-18 11:19:05 5
  • if you don't want to show string "version?, then use awk or cut filter it: apt-cache show pkgname | grep -i "version:" | awk '{ print $2 }' we can also use regex to search many packages and show their versions: apt-cache search pkgregex | grep -i "version:" Show Sample Output


    3
    apt-cache show pkgname | grep -i "version:"
    emacs · 2010-06-03 00:48:39 0
  • This let's you find out the total packages that have available upgrades. Usefull if you want to check or show the total available upgrades on your system. Show Sample Output


    3
    apt-get -s upgrade | awk '/[0-9]+ upgraded,/ {print $1 " package updates are available"}'
    lpanebr · 2012-03-29 17:04:32 0
  • After, check if working by executing this command locally : git clone git@192.168.0.18:repositories/gitosis-admin.git Tutorial : http://blog.hemca.com/?p=560


    2
    apt-get -y install git-core gitosis; adduser --home /home/git --gecos "git user" git; su git -c "ssh-keygen -t rsa -f /home/git/.ssh/id_rsa; gitosis-init < ~/.ssh/id_rsa"
    strzel_a · 2010-12-19 20:37:12 0
  • An apt-get wrapper function which will run the command via sudo, but will run it normally if you're only downloading source files. This was a bit of an excuse to show off the framework of cmd && echo true || echo false ...but as you can see, you must be careful about what is in the "true" block to make sure it executes without error, otherwise the "false" block will be executed. To allow the apt-get return code to pass through, you need to use a more normal if/else block: apt-get () { if [ "$1" = source ]; then command apt-get "$@"; else sudo apt-get "$@"; fi }


    1
    apt-get () { [ "$1" = source ] && (command apt-get "$@";true) || sudo apt-get "$@" }
    mulad · 2009-02-19 04:17:24 1
  • Taken from apticron and modified. Show Sample Output


    1
    apt-get --ignore-hold --allow-unauthenticated -s dist-upgrade | grep ^Inst | cut -d ' ' -f2
    phunehehe · 2013-01-07 11:21:58 0
  • Usefull if you only want to see the package names, or if you want to use them in a script.


    1
    apt-get -s upgrade | awk '/Inst.+/ {print $2}'
    lpanebr · 2013-03-25 21:23:11 0
  • In this case, linux- is the prefix; simply running apt-cache pkgnames would list every package APT knows about. The default APT config assumes -g, --generate; to use the cache as/is, you could similarly run: apt-cache --no-generate pkgnames [prefix] Adding --all-names, like so: apt-cache --no-generate --all-names pkgnames [prefix] would print all the packages APT knows about, using the cache as/is, including virtual packages and missing dependencies. This command was shamelessly stolen from the apt-cache(8) man-page. Show Sample Output


    1
    apt-cache pkgnames linux-
    benjabean1 · 2014-12-14 06:48:57 0
  • An alternative without aptitude.


    1
    apt-mark showmanual|xargs sudo apt-mark markauto
    DellDor · 2015-08-10 02:35:22 0
  • If, for example, you want to remove all kernels and headers but the last three versions, you can't use one of that magic all-in-one "remove old stuff" commands. With this simple but elegant command you can remove a range of versions, or a list of versions with e.g. {14,16,20}. Show Sample Output


    1
    apt purge linux*{14..18}*
    ppq · 2016-04-20 07:44:55 0
  • This will also work with bash instead of sh shell sudo bash -c 'apt update -y && apt upgrade -y'


    1
    sudo sh -c 'apt update -y && apt upgrade -y'
    ioshield · 2019-07-31 04:39:40 0
  • Search the names and descriptions of all available packages and prints out the name and the short description.


    0
    apt-cache search someregex
    chrisdrew · 2009-02-07 09:15:19 1
  • For example: check the APT security keys to make sure the Google digital signature was imported correctly Show Sample Output


    0
    apt-key list
    0disse0 · 2009-09-03 19:32:11 0
  • this is funny ;) alias sl="ls" ... is the useful solution, but that's boring ;P and You won't learn to think before You type !


    0
    apt-get install sl; sl
    alvinx · 2009-09-21 13:55:24 0
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convert from hexidecimal or octal to decimal
Bash can accept '0x' and '0' notation for hexidecimal and octal numbers, so you just have to output the values.

Find common groups between two users
Updated according to flatcap's suggestion, thanks!

drill holes on image

Find out how old a web page is
I used to use the Firefox "View page info" feature a lot to determine how stale the web page I was looking at was. Now that I use mostly Chrome I miss that feature, so here is a command line alternative using wget. The -S says to display the server response, the --spider says to not download any files/pages, just fetch the header. The output goes to stderr, so to grep it you use 2>&1 to combine the stderr stream with stdout, the pipe that to grep for Last-Modified. You can use curl instead if you have it installed, like this: $ curl --head -s http://osswin.sourceforge.net | grep Mod

find files beginning with filename* that do not include "string"
Inverse grep, to find files without the string

DVD ripping with ffmpeg
To rip DVD movie to ogg format using ffmpeg, follow these steps. 1) find the vob files on the mounted video DVD in VIDEO_TS that stores the movie itself. There would be a few other VOB files that stores splash screen or special features, the vob files for the movie itself can be identified by its superior size. You can verify these vob files by playing them directly with a player (e.g. mplayer) 2) concatenate all such vob files, pipe to ffmpeg 3) calculate the video size and crop size. The ogg video size must be multiple of 16 on both width and height, this is inherit limitation of theora codec. In my case I took 512x384. The -vcodec parameter is necessary because ffmpeg doesn't support theora by itself. -acodec is necessary otherwise ffmpeg uses flac by default.

list files recursively by size

Download and install the OpenStore on the Ubuntu Phone
This will download and install the latest version of the open store on the ubuntu phone, this store includes unconfined applications such as the TweakGeek and the Ubuntu Touch Tweak Tool. You can see the install instructions from here: https://open.uappexplorer.com/docs#install

Convert unix timestamp to date
The "-d" option for gnu's "date" command can calculate positive or negative offset from any time, including "now". You can even specify a source timezone (the output timezone can be set with the TZ environment variable). Useful! Fun! Not very well documented!

Convert any sequence of spaces/tabs to single space/tab
Remove empty lines additionally: $ tr -s ' \t\n' 2.txt identical with: $ tr -s '[:space:]' 2.txt To "clean perfectly" a text or code file, You can combine this command with another one: $ while read l; do echo -e "$l"; done 2.txt (= remove all leading and trailing spaces or tabs from all lines of a text file)


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