MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

GUI

#!/bin/bash
# Script for placing sudoers.d files with syntax-checking

# Making a temporary file to contain the sudoers-changes to be pre-checked
TMP=$(mktemp -t vagrant_sudoers)
cat /etc/sudoers > $TMP
cat >> $TMP <<EOF

# Allow passwordless startup of Vagrant when using NFS.
Cmnd_Alias VAGRANT_EXPORTS_ADD = /usr/bin/su root -c echo '*' >> /etc/exports

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

NZKoz

• Install getmail (aptitude install getmail4)
• Set Up Your Imap Server (tl;dr)
• getmail
• ruby date_based_archive.rb ~/Maildir/.Archive

pkhamre

{
  "handlers": {
    "default": {
      "type": "set",
      "handlers": ["mailer", "json"]
    },
    "mailer": {
      "type": "pipe",
      "command": "/etc/sensu/handler/mailer.rb"
    },

mcavage

var restify = require('restify');



///--- Globals

var NotAuthorizedError = restify.NotAuthorizedError;

ober

tshark -G|grep -i mysql|tr "\t" "\n"|grep "^mysql"|sort -u|awk 'BEGIN{ ORS=" "; print "tshark -tad -Nn port 3306"} {print "-z \"proto,colinfo,"$1","$1"\""  } END{ print "|sed -e \"s# == #:#g\" -e \"s#mysql.##g\"" }' > readmysql
chmod a+rx readmysql
./readmysql
# View all the good stuff about each packet.

kossnocorp

Clone & Build

curl https://gist.github.com/raw/970438/caff9a09ed2d223b1123a69ede17cb19ad352af9/build.sh | sh

border

include $(GOROOT)/src/Make.inc

GOFMT=gofmt -spaces=true -tabindent=false -tabwidth=4

all:
	$(GC) jsontest.go 
	$(LD) -o jsontest.out  jsontest.$O

format:
	$(GOFMT) -w jsontest.go

cpetschnig

# Regular Expression Validation for IPv6 addresses in Ruby
#
# Inspired by (if not to say copied from): http://forums.dartware.com/viewtopic.php?t=452
# Thanks, Dartware!

IPV6_REGEX = /^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f