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require 'benchmark'
N = 10_000_000
Benchmark.bmbm do |bm|
bm.report('String') do
N.times do
a = 'devise/session'
a.sub('/', '-')
end
$ ssh egorov@hdp001.rdb
$ echo 42 > big_data.txt
$ hadoop fs -put big_data.txt /tmp
$ hadoop fs -ls /tmp
Found 1 item
-rw-r--r-- 3 egorov supergroup 3 2015-07-10 02:41 /tmp/big_data.txt
$ hadoop fs -du /tmp/big_data.txt
3 /tmp/big_data.txt
[egorov@hdp001 ~]$ hadoop fs -stat %o /tmp/big_data.txt
134217728
// I pasted this without even looking at it. It the code running in the video here: http://youtu.be/OZ_9Yg0PG3M
// The video is of an Arduino controlling a single 8x8 LED matrix via an MBI5026 chip + a single 74HC595 shift register.
// Link to the MBI5026: http://www.rayslogic.com/propeller/programming/AdafruitRGB/MBI5026.pdf
#define SDI 10
#define CLK 9
#define LE 8
#define LED 17
// 74HC595
#define SHSDI 3 // DS (pin 14 on shift register)
@sashaegorov
sashaegorov / git_repos_check.sh
Created September 19, 2013 21:05
Simple bash one liner script for bulk git repositories status check.
cwd=`pwd`;for repo in `find . -type d -name '.git'`; do repodir=`echo $repo | sed 's/\.git$//'`; echo "Checking: $repodir"; cd $repodir; git status -s; cd $cwd; done
.repl_history
build
tags
.DS_Store
*.swp
*.swo
resources/*.nib
resources/*.momd
resources/*.storyboardc
.DS_Store