geekygecko

Bash Cheat Sheet

Basics

# declare the file as a bash script
#!/bin/bash
# debug a script
bash -x script.sh
# variables

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# Update your RVM to the latest statble version.
rvm get latest

# Update your RVM to the most recent version. (most bug fixes)
rvm get head

# Reinstall all your Rails gemset gems
rvm gemset empty project_gem_set && gem install bundler && bundle install

# How to fix Mac issue: `require': no such file to load -- iconv

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# Howebrew package manager for OS X is useful for installing unix terminal tools.

# Install Homebrew
/usr/bin/ruby -e "$(curl -fsSL https://raw.github.com/gist/323731)"

# Install wget
brew install wget
brew install openssl

# Update homebrew and all your packages

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# header
#!/usr/bin/env ruby

# require gem libraries
require 'rubygems'
require 'fileutils'

# get the current directory
dir = File.expand_path(File.dirname(__FILE__))

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Android Cheat Sheet

Developer tips

Record a video of your app

Developer options -> Check show touches
adb shell screenrecord /sdcard/video.mp4
adb pull /sdcard/video.mp4

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fun main(args: Array<String>) {

    // when statement
    val firstName = "Dan"
    val job = when (firstName) {
        "Dan", "Jay", "Philip" -> "programmer"
        "Jamie" -> "designer"
        else -> "boss"
    }
    println("$firstName is a $job")