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@JosephPecoraro
JosephPecoraro / shell-execution.rb
Last active September 10, 2023 10:12
Shell Execution in Ruby
# Ways to execute a shell script in Ruby
# Example Script - Joseph Pecoraro
cmd = "echo 'hi'" # Sample string that can be used
# 1. Kernel#` - commonly called backticks - `cmd`
# This is like many other languages, including bash, PHP, and Perl
# Synchronous (blocking)
# Returns the output of the shell command
# Docs: http://ruby-doc.org/core/classes/Kernel.html#M001111
@endolith
endolith / gcd_and_lcm.py
Last active June 22, 2022 23:33
GCD and LCM functions in Python for several numbers
# Greatest common divisor of 1 or more numbers.
from functools import reduce
def gcd(*numbers):
"""
Return the greatest common divisor of 1 or more integers
Examples
--------
@isaacs
isaacs / node-and-npm-in-30-seconds.sh
Last active March 8, 2024 02:11
Use one of these techniques to install node and npm without having to sudo. Discussed in more detail at http://joyeur.com/2010/12/10/installing-node-and-npm/ Note: npm >=0.3 is *safer* when using sudo.
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl https://www.npmjs.org/install.sh | sh
@thinkerbot
thinkerbot / gem_env.sh
Created November 8, 2010 18:28
Illustrates GEM_HOME vs GEM_PATH
# Two ENV variables control the 'gem' command:
#
# GEM_HOME: the single path to a gem dir where gems are installed
# GEM_PATH: a standard PATH to gem dirs where gems are found
#
# A gem directory is a directory that holds gems. The 'gem' command will lay
# out and utilize the following structure:
#
# bin # installed bin scripts
# cache # .gem files ex: cache/gem_name.gem
@tjstein
tjstein / nginx-vhost.conf
Created April 5, 2011 00:47
nginx vhost config for WordPress + PHP-FPM
upstream php-fpm {
server unix:/var/run/php5-fpm.sock;
}
server {
listen 80;
server_name www.example.com;
rewrite ^ http://example.com$request_uri?;
}
require 'psych'
list = ('a'..'z').to_a
# Create a YAML AST
viz = Psych::Visitors::YAMLTree.new {}
viz << list
tree = viz.tree
# Change the Sequence node to be FLOW style
@smoser
smoser / mdserv
Created October 11, 2011 16:48
simple python web server that mimicks ec2 instance metadata service
#!/usr/bin/python
"""
To use this to mimic the EC2 metadata service entirely, run it like:
# where 'eth0' is *some* interface. if i used 'lo:0' i got 5 second or so delays on response.
sudo ifconfig eth0:0 169.254.169.254 netmask 255.255.255.255
sudo ./mdserv 169.254.169.254:80
Then:
wget -q http://169.254.169.254/latest/meta-data/instance-id -O -; echo
curl --silent http://169.254.169.254/latest/meta-data/instance-id ; echo
@timsavery
timsavery / Ruby Download Parse JSON
Created January 22, 2012 15:19
Example For Downloading and Parsing JSON (Ruby)
require "rubygems"
require "json"
require "net/http"
require "uri"
uri = URI.parse("http://api.sejmometr.pl/posiedzenia/BZfWZ/projekty")
http = Net::HTTP.new(uri.host, uri.port)
request = Net::HTTP::Get.new(uri.request_uri)
@flavio
flavio / gemfile_lock2geminabox.rb
Created February 2, 2012 09:21
Parse Gemfile.lock, download all gems from rubygems and then upload them to a local instance of geminabox
#!/usr/bin/env ruby
require 'rubygems'
require 'bundler'
require 'fileutils'
require 'net/http'
require 'net/https'
require 'uri'
TMP_DIR = "/tmp/gems"
@trey
trey / gist:1739889
Created February 4, 2012 20:22
Get Bootstrap's fancy Glyphicons working in Rails

Well, to get Bootstrap working, first install [Less Rails Bootstrap][lrb].

Then create a button with a [fancy icon][fi] like so:

<%= link_to raw('<i class="icon-trash icon-white"></i>'), card, confirm: 'Are you sure?', method: :delete, :class => 'btn btn-danger' %>

Note that you have to link to raw to get it to not escape the HTML.