apt-fast: A shellscript wrapper for apt that speeds up downloading of packages.
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apt-fast 1.9

apt-fast is a shellscript wrapper for apt-get and aptitude that can drastically improve apt download times by downloading packages in parallel, with multiple connections per package.

Table of Contents


sudo add-apt-repository ppa:apt-fast/stable
sudo apt-get update
sudo apt-get -y install apt-fast

Ubuntu PPA

You can use the Ubuntu PPA to get a graphical configuration file setup and automatic updates, for details see:

Some distros, such as PCLinuxOS include apt-fast in their repos.

Quick Install

You can quickly install apt-fast by running:

/bin/bash -c "$(curl -sL https://git.io/vokNn)"


A manual install can be performed as such:

cp apt-fast /usr/local/sbin/
chmod +x /usr/local/sbin/apt-fast
cp apt-fast.conf /etc

You need to have aria2c installed:

apt-get install aria2

Then simply run apt-fast instead of apt-get or aptitude.



cp completions/bash/apt-fast /etc/bash_completion.d/
chown root:root /etc/bash_completion.d/apt-fast
. /etc/bash_completion


cp completions/zsh/_apt-fast /usr/share/zsh/functions/Completion/Debian/
chown root:root /usr/share/zsh/functions/Completion/Debian/_apt-fast
source /usr/share/zsh/functions/Completion/Debian/_apt-fast

Man page installation

mkdir -p /usr/local/share/man/man8/
cp ./man/apt-fast.8 /usr/local/share/man/man8
gzip -f9 /usr/local/share/man/man8/apt-fast.8
mkdir -p /usr/local/share/man/man5/
cp ./man/apt-fast.conf.5 /usr/local/share/man/man5
gzip -f9 /usr/local/share/man/man5/apt-fast.conf.5


The apt-fast configuration file is located at: /etc/apt-fast.conf

Package manager


Change package manager used for installation. Supported are apt-get, aptitude, apt.

Confirmation dialog


To suppress apt-fast confirmation dialog and download packages directly set this to any value. To ask for confirmation, leave empty. This options doesn't affect package manager confirmation.

Multiple mirrors

Adding multiple mirrors will further speed up downloads and distribute load, be sure to add mirrors near to your location. Official mirror lists:

Then add them to whitespace and comma separated list in config file, e.g.:

MIRRORS=( 'http://deb.debian.org/debian','http://ftp.debian.org/debian, http://ftp2.de.debian.org/debian, http://ftp.de.debian.org/debian, ftp://ftp.uni-kl.de/debian' )
MIRRORS=( 'http://archive.ubuntu.com/ubuntu, http://de.archive.ubuntu.com/ubuntu, http://ftp.halifax.rwth-aachen.de/ubuntu, http://ftp.uni-kl.de/pub/linux/ubuntu, http://mirror.informatik.uni-mannheim.de/pub/linux/distributions/ubuntu/' )

NOTE: To use any mirrors you may have in sources.list or sources.list.d you will need to add them to the apt-fast.conf mirror list as well!

Maximum connections


Set to maximum number of connections aria2c uses.

Maximum connections per server


Set to maximum number of connections per server aria2c uses.

Maximum connections per file


Set to maximum number of connections per file aria2c uses.

File split size


Set to size of each split piece. Possible values: 1M-1024M

Piece selection algorithm


Set to piece selection algorithm to use. Possible values: default, inorder, geom

Downloadmanager file


Location of aria2c input file, used to download the packages with options and checksums.

Downloadmanager command

_DOWNLOADER='aria2c --no-conf -c -j ${_MAXNUM} -x ${_MAXCONPERSRV} -s ${_SPLITCON} -i ${DLLIST} --min-split-size=${_MINSPLITSZ} --stream-piece-selector=${_PIECEALGO} --connect-timeout=600 --timeout=600 -m0'

Change the download manager or add additional options to aria2c.


apt-fast uses APT's proxy settings (Acquire::http::proxy, Acquire::https::proxy, Acquire::ftp::proxy) and if those are not available, the environment settings (http_proxy, https_proxy, ftp_proxy). Refer to APT's or the system's documentation.

Download folder


Directory where apt-fast downloads the packages.

APT archives cache


Directory where apt-get and aptitude download packages.

Verbose output


Show aria2 download file instead of package listing before download confirmation. Unset to show package listing.



Terminal colors used for dialogs. Refer to ANSI Escape sequences for a list of possible values. Disabled when not using terminal.


Consider apt-fast and all of its derivatives licensed under the GNU GPLv3+.

Copyright: 2008-2012 Matt Parnell, http://www.mattparnell.com

Improvements, maintenance, revisions - 2012, 2017-2018 Dominique Lasserre

Special thanks

  • Travis/travisn000 - support for complex apt-get commands
  • Alan Hoffmeister - aria2c support
  • Abhishek Sharma - aria2c with proxy support
  • Luca Marchetti - improvements on the locking system and downloader execution
  • Richard Klien - Autocompletion, Download Size Checking (made for on ubuntu, untested on other distros)
  • Patrick Kramer Ruiz - suggestions
  • Sergio Silva - test to see if axel is installed, root detection/sudo autorun, lock file check/creation
  • Waldemar {BOB}{Burnfaker} Wetzel - lockfile improvements, separate config file
  • maclarke - locking improvements