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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:

Debian and derivates

Some distros, such as PCLinuxOS include apt-fast in their repositories. However if not included like in Debian or Kali Linux, then the PPA can be manually added by creating a new file /etc/apt/sources.list.d/apt-fast.list:

deb bionic main 
deb-src bionic main

To install apt-fast execute following commands as root:

apt-key adv --keyserver --recv-keys A2166B8DE8BDC3367D1901C11EE2FF37CA8DA16B
apt-get update
apt-get install apt-fast

Note that the PPA version bionic might need to be updated with the recent Ubuntu LTS codename to stay up-to-date.

Interaction-free installation

To install apt-fast without interaction execute the following commands as root after adding the package sources to the sources.list:

DEBIAN_FRONTEND=noninteractive apt-get install -y apt-fast

To update specific configuration values use the debconf command line interface as root, e.g.:

echo debconf apt-fast/maxdownloads string 16 | debconf-set-selections
echo debconf apt-fast/dlflag boolean true | debconf-set-selections
echo debconf apt-fast/aptmanager string apt-get | debconf-set-selections

Quick install

You can quickly install apt-fast by running:

/bin/bash -c "$(curl -sL"


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.


The completions for the respective shells use the existing apt-get completion. It is required to have the apt-get completion installed. In case of Bash the package bash-completion is required. For Zsh and Fish required completions are included by default (in their *-common packages).


apt-get install bash-completion
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


cp completions/fish/ /etc/fish/conf.d/completions/
chown root:root /etc/fish/conf.d/completions/
source /etc/fish/conf.d/completions/

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.

Note: When using Linux Mint, don't use apt because the distributor provides a custom shell script with different functionality unsupported by apt-fast.

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=( '',',,,' )
MIRRORS=( ',,,,' )

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 (temporarily) 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,

Improvements, maintenance, revisions - 2012, 2017-2019 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