GNU Parallel - News: GNU Parallel 20190222 ('Baghuz') released

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GNU Parallel 20190222 ('Baghuz') released

Item posted by Ole Tange <tange> on Fri 22 Feb 2019 09:34:58 PM UTC.

GNU Parallel 20190222 ('Baghuz') has been released. It is available for download at: http://ftpmirror.gnu.org/parallel/

Quote of the month:

With GNU Parallel you sure can!
I like getting things done

--Kyle Lady @kylelady@twitter

New in this release:

--shard makes it possible to send input to the same jobslot based on the value in one column of the input. It is similar to sharding in databases.

--shellquote --shellquote will shell quote the input twice.

GNU Parallel is available in Termux https://github.com/termux/termux-packages/tree/master/packages/parallel

Linux, command line & MetaCentrum https://trapa.cz/sites/default/files/linux_bash_metacentrum_course_4.pdf

How to supercharge your bash workflows with GNU parallel https://medium.freecodecamp.org/how-to-supercharge-your-bash-workflows-with-gnu-parallel-53aab0aea141

GNU Parallel Spring 2017 https://www.youtube.com/watch?v=LHb29uW_KyI

Parallelizing Freesurfer blog.cogneurostats.com/?p=148

FreeSurfer #4: Running recon-all in Parallel https://www.youtube.com/watch?v=XHN2tm3tNaw

FreeSurfer: recon-all https://www.neurotrivial.com/2019/01/24/freesurfer-recon-all/

Come ridimensionare 10k foto con la riga di comando https://pigrecoinfinito.wordpress.com/2018/12/22/come-ridimensionare-10k-foto-con-la-riga-di-comando/

并行处理 – Gnu Parallel：嵌套并行 https://codeday.me/bug/20190122/552902.html

シェルスクリプトでコマンドを並列実行する方法https://www.kwbtblog.com/entry/2019/01/12/020423

Bug fixes and man page updates.

Get the book: GNU Parallel 2018 http://www.lulu.com/shop/ole-tange/gnu-parallel-2018/paperback/product-23558902.html

GNU Parallel - For people who live life in the parallel lane.

About GNU Parallel

GNU Parallel is a shell tool for executing jobs in parallel using one or more computers. A job 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/ || fetch -o - http://pi.dk/3) | bash

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

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

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

O. Tange (2018): GNU Parallel 2018, March 2018, https://doi.org/10.5281/zenodo.1146014.

If you like GNU Parallel:

Give a demo at your local user group/team/colleagues
Post the intro videos on Reddit/Diaspora*/forums/blogs/ Identi.ca/Google+/Twitter/Facebook/Linkedin/mailing lists
Get the merchandise https://gnuparallel.threadless.com/designs/gnu-parallel
Request or write a review for your favourite blog or magazine
Request or build a package for your favourite distribution (if it is not already there)
Invite me for your next conference

If you use programs that use GNU Parallel for research:

Please cite GNU Parallel in you publications (use --citation)

If GNU Parallel saves you money:

(Have your company) donate to FSF https://my.fsf.org/donate/

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.

The database is addressed using a DBURL. If commands are left out you will get that database's interactive shell.

When using GNU SQL for a publication please cite:

O. Tange (2011): GNU SQL - A Command Line Tool for Accessing Different Databases Using DBURLs, ;login: The USENIX Magazine, April 2011:29-32.

About GNU Niceload

GNU niceload slows down a program when the computer load average (or other system activity) is above a certain limit. When the limit is reached the program will be suspended for some time. If the limit is a soft limit the program will be allowed to run for short amounts of time before being suspended again. If the limit is a hard limit the program will only be allowed to run when the system is below the limit.