GNU Parallel - News: GNU Parallel 20140322 ('昆明 MH370') released

GNU Parallel 20140322 ('昆明 MH370') released

Item posted by Ole Tange <tange> on Sat 22 Mar 2014 12:02:18 PM UTC.

GNU Parallel 20140322 ('昆明 MH370') has been released. It is available for download at: http://ftp.gnu.org/gnu/parallel/

No new functionality was introduced so this is a good candidate for a stable release.


New in this release:

• Offical package for Alpine Linux now exists: http://alpinelinux.org/apk/main/x86/parallel

• GNU Parallel was cited in: Estimating uncertainties in statistics computed from direct numerical simulation http://dx.doi.org/10.1063/1.4866813

• GNU Parallel was cited in: Vehicle routing problems with time windows and multiple service workers: a systematic comparison between ACO and GRASP http://link.springer.com/article/10.1007/s10100-014-0341-z

• GNU Parallel, quick and easy http://www.reganmian.net/blog/2014/03/09/gnu-parallel-quick-and-easy/

• Using Multiple CPU Cores With Command Line Tools http://prateekvjoshi.com/2014/03/07/using-multiple-cpu-cores-with-command-line-tools/

• Batch convert mp3 CBR to VBR http://blogs.zercle.com/bouroo/2013/03/batch-convert-mp3-cbr-to-vbr/

• Running Behat in parallel with Selenium grid http://zalas.eu/running-behat-in-parallel-with-selenium-grid/

• Git-Mirror per cronjob aktuell halten https://www.schtobia.de/2013/git-mirror-per-cronjob-aktuell-halten/

• Пишем многопоточный скрипт на bash http://dafter.ru/duf/howto/130.html

• 如何利用多核CPU来加速你的Linux命令 http://www.chinadmd.com/file/xpcr6wpctzwtuu3ivwiaatcs_1.html

• Bug fixes and man page updates.

About GNU Parallel

GNU Parallel is a shell tool for executing jobs in parallel using one or more computers. A job is can be a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. A job can also be a command that reads from a pipe. GNU Parallel can then split the input and pipe it into commands in parallel.

If you use xargs and tee today you will find GNU Parallel very easy to use as GNU Parallel is written to have the same options as xargs. If you write loops in shell, you will find GNU Parallel may be able to replace most of the loops and make them run faster by running several jobs in parallel. GNU Parallel can even replace nested loops.

GNU Parallel makes sure output from the commands is the same output as you would get had you run the commands sequentially. This makes it possible to use output from GNU Parallel as input for other programs.

You can find more about GNU Parallel at: http://www.gnu.org/s/parallel/

You can install GNU Parallel in just 10 seconds with: (wget -O - pi.dk/3 || curl pi.dk/3/) | bash

Watch the intro video on http://www.youtube.com/playlist?list=PL284C9FF2488BC6D1

Walk through the tutorial (man parallel_tutorial). Your commandline will love you for it.

When using programs that use GNU Parallel to process data for publication please cite:

O. Tange (2011): GNU Parallel - The Command-Line Power Tool, ;login: The USENIX Magazine, February 2011:42-47.

About GNU SQL

GNU sql aims to give a simple, unified interface for accessing databases through all the different databases' command line clients. So far the focus has been on giving a common way to specify login information (protocol, username, password, hostname, and port number), size (database and table size), and running queries.