AXEL - Lightweight CLI download accelerator
About
Axel tries to accelerate the download process by using multiple
connections per file, and can also balance the load between
different servers.
Axel tries to be as light as possible, so it might be useful on
byte-critical systems.
Axel supports HTTP, HTTPS, FTP and FTPS protocols.
Thanks to the original developer of Axel, Wilmer van der Gaast, and everyone
else who has contributed to it over the years.
Usage
For usage information, see the manual page:
man axel
How to help
If you can code and are interested in improving Axel, please read the
CONTRIBUTING.md file; if you’re looking for ideas check our
open tickets.
Additionally, there is a
google group to
discuss and to coordinate development. You can also find other developers in the
#axel channel on Freenode.
The sustainability of the project mainly depends on developers dedicating time,
so if you want to contribute but can’t code, there’s also the option to fund
paid development time through:
Installing from binaries
Your operating system may contain a precompiled version of Axel, and if so you
should probably use it. If the package is outdated please get in touch with the
package maintainer or open a support ticket with your distro.
Building from source
WARNING: Building from the source code repository is recommended only when doing
development, otherwise only use release tarballs.
Axel uses GNU autotools for it’s buildsystem; instructions are provided in the
INSTALL file. The basic actions for most users are:
./configure && make && make install
To build without SSL/TLS support, pass to configure the --without-ssl flag.
If you’re working from the source code repository instead of a release tarball,
you need to generate the buildsystem first with:
autoreconf -i
When working from a git repository the build system will detect that and will
add -Werror to the CFLAGS if supported; so if you’re not doing development you
should probably consider passing --disable-Werror to configure in order to
prevent build failures due to mere warnings.
Dependencies
gettext (or gettext-tiny)pkg-config
Optional:
libssl (OpenSSL, LibreSSL or compatible) – for SSL/TLS support.
autoconf-archiveautoconfautomakeautopointtxt2man
Packages on Debian-based systems
build-essentialautoconfautoconf-archiveautomakeautopointgettextlibssl-devpkg-configtxt2man
Packages on Mac OS X (Homebrew)
autoconf-archiveautomakegettextopenssl
Building on Mac OS X (Homebrew)
You’ll need to provide some extra options to autotools so it can find gettext
and openssl.
GETTEXT=/usr/local/opt/gettext
OPENSSL=/usr/local/opt/openssl
PATH="$GETTEXT/bin:$PATH"
[ -x configure ] || autoreconf -fiv -I$GETTEXT/share/aclocal/
CFLAGS="-I$GETTEXT/include -I$OPENSSL/include" \
LDFLAGS=-L$GETTEXT/lib ./configure
You can just run make as usual after these steps.
License
Axel is licensed under GPL-2+ with the OpenSSL exception.
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