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while true; do git pull && notify-send 'It works again!' && break; sleep 5s; done

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(ls ~ & echo $! > /tmp/pid) | grep 'text'; cat /tmp/pid

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convert source.png -resize 128x128 -normalize -equalize -posterize 4 -colors 8 -unique-colors -scale 1000% colors.png

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:sav %.coffee | bd# | !rm #

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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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#!/bin/sh
while :; do nc -l 9292 <<< $'HTTP/1.1 200 OK\r\nHello, world!'; done

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# List of available dates you can see at https://static.rust-lang.org/dist/
curl -s https://static.rust-lang.org/rustup.sh | sudo sh -s -- --date="2015-03-25"

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input_array = [1, 2, 1, 4, 1.0, 1r]

require 'set'
Set.new(input_array).to_a
# => [1, 2, 4, 1.0, (1/1)]

unique_elements = []
input_array.each { |el| unique_elements << el unless unique_elements.include?(el) }
unique_elements
# => [1, 2, 4]

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public.class_eval { def say_hello; 'Hello!'; end }

:ruby.say_hello # => "Hello!"

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Object.class_eval { def self.private; Object; end }

def MyClass
  private
  
  def some_method
  end
end

MyClass.private_instance_methods.include? :some_method # => false