GNU Parallel 20170822 ('Barcelona') released

[Ole Tange]

GNU Parallel 20170822 ('Barcelona') has been released. It is available
for download at: http://ftpmirror.gnu.org/parallel/

Haiku of the month:

  --line-buffer
  touches files on disk no more
  faster than before
    -- Ole Tange

New in this release:

* --line-buffer no longer uses tempfiles. This is faster and makes it
possible for a single process to output more data than there is free
disk space.

* Vote for GNU Parallel's community ads on
http://meta.unix.stackexchange.com/a/4356/2972
http://meta.askubuntu.com/a/16750/22307
http://meta.serverfault.com/a/9040/45704

* GNU Parallel was cited in:
https://springerplus.springeropen.com/articles/10.1186/s40064-016-2022-y

* Edit images with GNU Parallel and ImageMagick
https://fedoramagazine.org/edit-images-parallel-imagemagick/

* Running Bash Commands in Parallel
https://dzone.com/articles/running-bash-commands-in-parallel-1

* Today I Learned: GNU parallel, plate tectonics
https://medium.com/@nornagon/today-i-learned-gnu-parallel-plate-tectonics-9fcf24045e63

* GNU Parallel Tutorial https://www.upf.edu/web/sct-sit/gnu-parallel-tutorial

* Validating half a million TIFF files
http://www.dpoc.ac.uk/2017/08/17/validating-half-a-million-tiff-files-part-two/

* Blender and GNU Parallel
https://www.blendernation.com/2017/08/16/blender-gnu-parallel/

* Quick Introduction to GNU Parallel
https://github.com/LangilleLab/microbiome_helper/wiki/Quick-Introduction-to-GNU-Parallel

* A simple distributed animation render example using GNU Parallel
https://gitlab.com/skororu/scripts

* Do stuff on things, in parallel
http://blogs.fluidinfo.com/terry/2017/08/05/do-stuff-on-things-in-parallel/

* Bash And GNU Parallel NGS Bidniz
http://ino.pm/outreach/presentations/2014/03/genomics-wranglers/index.html

* Using for loop vs Gnu parallel for BLAST
http://www.ettemalab.org/using-for-loop-vs-gnu-parallel-for-blast/

* 并行rsync https://gxnotes.com/article/175866.html

* Bug fixes and man page updates.

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/) | 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.

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://www.gnu.org/s/parallel/merchandise.html
* 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.