This guide enables you to install (ruby-build) and use (rbenv) multiple versions of ruby, isolate project gems (gemsets and/or bundler), and automatically use appropriate combinations of rubies and gems.
# Ensure system is in ship-shape.
aptitude install git zsh libssl-dev zlib1g-dev libreadline-dev libyaml-dev
| # Command | |
| shasum -a 256 /path/to/file | cut -c-12 | |
| # Example: | |
| > shasum -a 256 ~/Desktop/Python-3.4.0.tgz | cut -c-12 (master⚡) | |
| d2c83ea02177 | |
| # learned in: https://coderwall.com/p/bbfjrw/calculate-checksum-for-chef-s-remote_file-resource |
| #!/bin/sh | |
| set -e | |
| for link; do | |
| test -h "$link" || continue | |
| dir=$(dirname "$link") | |
| reltarget=$(readlink "$link") | |
| case $reltarget in | |
| /*) abstarget=$reltarget;; | |
| *) abstarget=$dir/$reltarget;; |
| ### Start Piperita Theme ### | |
| # Theme by Jacob Tomlinson | |
| # https://github.com/killfall/terminal-piperita | |
| # Aliases to make ls easier to use in different modes, taken from Red Hat EL 6 | |
| alias ls='ls -GFh' | |
| alias ll="ls -l" | |
| alias lo="ls -o" | |
| alias lh="ls -lh" | |
| alias la="ls -la" |
| def humanize secs | |
| [[60, :seconds], [60, :minutes], [24, :hours], [1000, :days]].map{ |count, name| | |
| if secs > 0 | |
| secs, n = secs.divmod(count) | |
| "#{n.to_i} #{name}" | |
| end | |
| }.compact.reverse.join(' ') | |
| end | |
| p humanize 1234 |
| # | |
| # Sets Prezto options. | |
| # | |
| # Authors: | |
| # Sorin Ionescu <sorin.ionescu@gmail.com> | |
| # | |
| # | |
| # General | |
| # |
| #!/usr/bin/env ruby | |
| require 'net/smtp' | |
| unless (2..3).include? ARGV.length | |
| puts 'Usage: mail.rb SUBJECT TO [FROM]' | |
| exit 1 | |
| end | |
| subject, to, from_ = ARGV |
| require 'mechanize' | |
| require 'open-uri' | |
| require 'rubygems' | |
| require 'work_queue' | |
| wq = WorkQueue.new 1000 | |
| (1..5000).each do |number| | |
| #beginning = Time.now | |
| wq.enqueue_b do |
| git filter-branch --index-filter 'git rm --cached --ignore-unmatch blah.jar' -f --tag-name-filter cat -- --all | |
| git filter-branch --index-filter 'git rm -r --cached --ignore-unmatch folder/' -f --tag-name-filter cat -- --all |
| #!/bin/sh | |
| PARAMETERS=`aws ssm get-parameters-by-path --path ${1} --with-decryption` | |
| for row in $(echo ${PARAMETERS} | jq -c '.Parameters' | jq -c '.[]'); do | |
| KEY=$(basename $(echo ${row} | jq -c '.Name')) | |
| VALUE=$(echo ${row} | jq -c '.Value') | |
| KEY=`echo ${KEY} | tr -d '"'` | |
| VALUE=`echo ${VALUE} | tr -d '"'` |