pcreux

#!/usr/bin/env ruby

# Jabber-SH — SH console via XMPP/Jabber (GTalk)
#
# Jabber-SH allows you to administrate a remote computer via a command line 
# through a Jabber client. It’s like SSH via GoogleTalk! :)
# This is just a hack but it might be usefull sometime to run basic commands
# on a machine that is not accessible via ssh.
#
# Philippe Creux. pcreux/AT/gmail/DOT/com

vapidbabble

h       scroll left
j       scroll down
k       scroll up
l       scroll right
gg      scroll to top of the page
G       scroll to bottom of the page
f       activate link hints mode to open in current tab
F       activate link hints mode to open in new tab
r       reload

egraether

Copyright (c) 2011 Eberhard Gräther, http://egraether.com
 
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
 

sindresorhus

{
	"ad": [
		"42.5000",
		"1.5000"
	],
	"ae": [
		"24.0000",
		"54.0000"
	],
	"af": [

femto113

function transpose(a)
{
  return a[0].map(function (_, c) { return a.map(function (r) { return r[c]; }); });
  // or in more modern dialect
  // return a[0].map((_, c) => a.map(r => r[c]));
}

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

mikea

L1 cache reference                  0.5 ns
Branch mispredict                   5 ns
L2 cache reference                  7 ns                      14x L1 cache
Mutex lock/unlock                   25 ns                     
Main memory reference               100 ns                    4x mutex op, 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy        3,000 ns
Send 2K bytes over 1 Gbps network   20,000 ns
Read 1 MB sequentially from memory  250,000 ns

bpo

redis-cli EVAL "$(cat hello.lua)" 0

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

tylerneylon

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--[[
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