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@JosephPecoraro
JosephPecoraro / shell-execution.rb
Last active March 19, 2025 06:46
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
@virtualstaticvoid
virtualstaticvoid / iptables_rules.sh
Created June 14, 2011 08:58
25 Most Frequently Used Linux IPTables Rules Examples
# Modify this file accordingly for your specific requirement.
# http://www.thegeekstuff.com
# 1. Delete all existing rules
iptables -F
# 2. Set default chain policies
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT DROP
@mpasternacki
mpasternacki / data_bag_from_yaml.rb
Created August 19, 2011 17:39
Knife plugin to create data bags from YAML files
#
# Author:: Maciej Pasternacki (<[email protected]>)
# Copyright:: Copyright (c) 2010 Maciej Pasternacki
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
@rtomayko
rtomayko / optparse-template.rb
Last active June 3, 2023 03:16
Ruby optparse template
#!/usr/bin/env ruby
#/ Usage: <progname> [options]...
#/ How does this script make my life easier?
# ** Tip: use #/ lines to define the --help usage message.
$stderr.sync = true
require 'optparse'
# default options
flag = false
option = "default value"
@ChrisWills
ChrisWills / .screenrc-main-example
Created November 3, 2011 17:50
A nice default screenrc
# GNU Screen - main configuration file
# All other .screenrc files will source this file to inherit settings.
# Author: Christian Wills - [email protected]
# Allow bold colors - necessary for some reason
attrcolor b ".I"
# Tell screen how to set colors. AB = background, AF=foreground
termcapinfo xterm 'Co#256:AB=\E[48;5;%dm:AF=\E[38;5;%dm'
@jtimberman
jtimberman / knife.rb
Created February 1, 2012 19:33
Commented knife.rb for all the things
# Knife Configuration File.
#
# This is a Ruby DSL to set configuration parameters for Knife's
# general options. The default location for this file is
# ~/.chef/knife.rb. If multiple Chef repositories are used,
# per-repository configuration files can be created. A per repository
# configuration file must be .chef/knife.rb in the base directory of
# the Chef repository. For example,
#
# ~/Development/chef-repo/.chef/knife.rb
@mloberg
mloberg / irc.rb
Created April 9, 2012 17:56
Ruby IRC
require "socket"
class IRC
def initialize(info)
@server = info[:server]
@port = info[:port] || 6667
@password = info[:password]
@nick = info[:nick]
@channel = info[:channel]
@andreyvit
andreyvit / tmux.md
Created June 13, 2012 03:41
tmux cheatsheet

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active May 15, 2025 05:11
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@rubenwardy
rubenwardy / mod_debug.lua
Last active January 3, 2022 08:56
Craft recipe checker for Minetest
-- Written by rubenwardy, WTFPL
-- To use:
-- * Save as mod_debug.lua in builtin/game
-- * add dofile(gamepath.."mod_debug.lua") to the last line of builtin/game/init.lua
-- OR
-- * Install as a mod. Needs to be run before any other mod.
local mod = {}
mod.recipes = {}
mod.aliases = {}