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javascript:((_=>location.href='http://web.archive.org/web/*/'+location.href)())

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# Shows the number of AWS IPs
curl -s https://ip-ranges.amazonaws.com/ip-ranges.json | jq '.prefixes[].ip_prefix' | xargs ruby -e "puts ARGV.reduce(0) { |acc, i| acc + 2**(32 - i.split('/')[1].to_i) }"

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# Figure out where a method was defined

object = Object.new
puts object.method(:blank?).source_location


# Opening a dependency from a project
$ bundle open active_support

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return done ? foo(a) : bar(b);

return done == false && exist == true
       ? foo(a)
       : bar(b);


const baz = (a, b) =>
  done ? foo(a) : bar(b);

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const _ = require('lodash');

const map     = _.map;
const mapWith = (fn) => (list) => map(list, fn);

// Bounding to a name
((diameter_fn) =>
  console.log(diameter_fn(2))  //=> 6.2831853
)(
  ((PI) =>

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wget --limit-rate=200k --no-clobber --convert-links --random-wait -r -p -E -e robots=off -U mozilla http://example.com

# or

download_site () {
  wget --limit-rate=200k --no-clobber --convert-links --random-wait -r -p -E -e robots=off -U mozilla $1
}

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curl wttr.in

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Source

Better Bash Scripting in 15 Minutes

The tips and tricks below originally appeared as one of Google's "Testing on the Toilet" (TOTT) episodes.
This is a revised and augmented version.

Safer Scripting

I start every bash script with the following prolog:

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Feel free to add new quotes.

---

blia Dec 22 14:43

форкни фетч еба

---

Iurii Plugatariov @strangeworks Sep 18 22:09

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#!/bin/bash

init() {
  # Use ruby version specified in .ruby-version file
  rvm use $(cat .ruby-version)

  # Use Postgress 9.3 version on Codeship (port 5433)
  sed -i "s|5432|5433|" "config/database.yml"

  # Install gem dependencies