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@rkumar
rkumar / gist:445735
Created June 20, 2010 10:47
ruby's OptionParser to get subcommands
#!/usr/bin/env ruby -w
## Using ruby's standard OptionParser to get subcommand's in command line arguments
## Note you cannot do: opt.rb help command
## other options are commander, main, GLI, trollop...
# run it as
# ruby opt.rb --help
# ruby opt.rb foo --help
# ruby opt.rb foo -q
# etc
@telamon
telamon / rdhcpd.rb
Created May 20, 2011 23:58
Pure ruby DHCP server
' Copyright (c) 2007, Tony Ivanov
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
@bsingr
bsingr / ruby_ipv4_notations.rb
Created November 1, 2011 11:19
Convert Ipv4 Addresses between Integer and dot-decimal notation using ruby
# How to convert IPv4 addresses between integer <=> dot-decimal notation
INTEGER = 1698212032
DOT_DECIMAL = '192.168.56.101'
# [ 192, 168, 56, 101 ]
DOT_DECIMAL_PARTS = DOT_DECIMAL.split('.').map(&:to_i)
####################################
# integer to dot-decimal
@peterc
peterc / dnsd.rb
Created December 2, 2011 23:47
Simple, scrappy UDP DNS server in Ruby (with protocol annotations)
# Simple, scrappy UDP DNS server in Ruby (with protocol annotations)
# By Peter Cooper
#
# MIT license
#
# * Not advised to use in your production environment! ;-)
# * Requires Ruby 1.9
# * Supports A and CNAME records
# * See http://www.ietf.org/rfc/rfc1035.txt for protocol guidance
# * All records get the same TTL
@taktran
taktran / sinatra_cheatsheet.md
Created December 7, 2011 15:45
Sinatra cheatsheet

Useful commands

last_response
    .body

last_request
    .path
    .url
    .session

.cookies

@chetan
chetan / yardoc_cheatsheet.md
Last active May 10, 2024 02:53
YARD cheatsheet
@CristinaSolana
CristinaSolana / gist:1885435
Created February 22, 2012 14:56
Keeping a fork up to date

1. Clone your fork:

git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream
@mitfik
mitfik / ruby_csr_example.rb
Created February 27, 2012 10:13
Ruby example of CSR with openssl
require 'openssl'
def gen_key(name)
key = OpenSSL::PKey::RSA.new 1048
file = File.new(name, "w")
file.write(key)
file.close
end
def get_key(name)
@abhisek
abhisek / Injector.rb
Created August 8, 2012 18:09
DLL Injector
$:.unshift("E:\\Tools\\metasm")
require 'metasm'
require 'optparse'
$ASMCODE =
# Win32 PEB based API Resolver
# Metasm seems to fail on jecxz so we compile using nasm and use the binary
"\xe8\x56\x00\x00\x00\x53\x55\x56\x57\x8b\x6c\x24\x18\x8b\x45\x3c" +
"\x8b\x54\x05\x78\x01\xea\x8b\x4a\x18\x8b\x5a\x20\x01\xeb\xe3\x32" +
@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this: