From 39df861585ee056ae092e65bbdac2143a04e97d3 Mon Sep 17 00:00:00 2001
From: John Kleint <jkleint@gmail.com>
Date: Tue, 29 Dec 2015 23:55:04 -0500
Subject: [PATCH] Add GNU Parallel

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 pages/common/parallel.md | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 pages/common/parallel.md

diff --git a/pages/common/parallel.md b/pages/common/parallel.md
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+# GNU Parallel
+
+> Run commands on multiple CPU cores
+
+- gzip several files at once, using all cores
+
+`parallel gzip ::: {{file1}} {{file2}} {{file3}}`
+
+- read arguments from stdin, run 4 jobs at once
+
+`ls *.txt | parallel -j4 gzip`
+
+- Convert JPG images to PNG using replacement strings
+
+`parallel convert {} {.}.png ::: *.jpg`
+
+- parallel xargs, cram as many args as possible onto one command
+
+`{{args}} | parallel -X {{command}}`
+
+- break stdin into ~1M blocks, feed each block to stdin of new command
+
+`cat {{bigfile.txt}} | parallel --pipe --block 1M {{command}}`
+
+- run on multiple machines via SSH
+
+`parallel -S {{machine1}},{{machine2}} {{command}} ::: {{arg1}} {{arg2}}`