fatih

function switchgo() {
  version=$1
  if [ -z $version ]; then
    echo "Usage: switchgo [version]"
    return
  fi

  if ! command -v "go$version" > /dev/null 2>&1; then
    echo "version does not exist, download with: "
    echo "  go get golang.org/dl/go${version}"

fnky

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

danielv99

# Requirements
# debian/ubuntu

apt-get -y update && apt-get -y upgrade
apt-get -y install strongswan xl2tpd libstrongswan-standard-plugins libstrongswan-extra-plugins

VPN_SERVER_IP=''
VPN_IPSEC_PSK='y'
VPN_USER=''
VPN_PASSWORD=''

roylee0704

docker logs nginx 2>&1 | grep "127." 

# ref: http://stackoverflow.com/questions/34724980/finding-a-string-in-docker-logs-of-container

sosedoff

package main

import (
  "fmt"
  "reflect"
)

// Name of the struct tag used in examples
const tagName = "validate"

mfuerstenau

  ZigZag-Encoding
  ---------------
  
  Maps negative values to positive values while going back and
  forth (0 = 0, -1 = 1, 1 = 2, -2 = 3, 2 = 4, -3 = 5, 3 = 6 ...)

  (i >> bitlength-1) ^ (i << 1)

  with "i" being the number to be encoded, "^" being
  XOR-operation and ">>" would be arithemtic shifting-operation

grafikchaos

Cherry pick multiple commits from a remote or upstream branch into your local branch.

Saw this from a comment on an answer on Stack Overflow

git fetch upstream
git cherry-pick A^..B

bnerd

ffmpeg -re -i rtmp://localhost/live/input_stream -acodec libfaac -ab 128k -vcodec libx264 -s 640x360 -b:v 500k -preset medium -vprofile baseline -r 25 -f flv rtmp://localhost/live/medium_500k -acodec libfaac -ab 128k -vcodec libx264 -s 480x272 -b:v 300k -preset medium -vprofile baseline -r 25 -f flv rtmp://localhost/live/medium_300k -acodec libfaac -ab 128k  -c:v libx264 -s 320x200 -b:v 150k -preset:v fast -profile:v baseline -level 1.2 -r 25 -f flv rtmp://localhost/live/medium_150k -acodec libfaac -vn -ab 48k -f flv rtmp://localhost/live/audio_only

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a