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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
# How to find out where a method comes from.
# Learned this from Dave Thomas while teaching Advanced Ruby Studio
# Makes the case for separating method definitions into
# modules, especially when enhancing built-in classes.
module Perpetrator
def crime
end
end
class Fixnum
#RUBYISMS
a = b.foo
if a.empty?
a = b.bar
else
a.reverse!
end
#can be simplied a little by assigning and
@eculver
eculver / Auto-refresh bookmarklet
Created January 2, 2010 01:02
Auto-refresh bookmarklet
// origin: http://www.google.com/support/forum/p/Chrome/thread?tid=1a37ccbdde5902fd&hl=en
javascript:
timeout=prompt("Set timeout [s]");
current=location.href;
if(timeout>0)
setTimeout('reload()',1000*timeout);
else
location.replace(current);
function reload(){
@zhengjia
zhengjia / capybara cheat sheet
Created June 7, 2010 01:35
capybara cheat sheet
=Navigating=
visit('/projects')
visit(post_comments_path(post))
=Clicking links and buttons=
click_link('id-of-link')
click_link('Link Text')
click_button('Save')
click('Link Text') # Click either a link or a button
click('Button Value')
@phstc
phstc / happy_oop.rb
Created October 26, 2010 22:39
Happy OOP examples using Ruby
#These Ruby OOP examples, are based on the Rails 3 presentation by @guilhermecaelum
class Person
#the attribute name is immutable
def initialize(name)
@name = name
end
def name
@name
end
end
@fnichol
fnichol / README.md
Created March 12, 2011 20:52
Download a cacert.pem for RailsInstaller

Why?

There is a long standing issue in Ruby where the net/http library by default does not check the validity of an SSL certificate during a TLS handshake. Rather than deal with the underlying problem (a missing certificate authority, a self-signed certificate, etc.) one tends to see bad hacks everywhere. This can lead to problems down the road.

From what I can see the OpenSSL library that Rails Installer delivers has no certificate authorities defined. So, let's go fetch some from the curl website. And since this is for ruby, why don't we download and install the file with a ruby script?

Installation

The Ruby Way! (Fun)

@mtigas
mtigas / gist:952344
Last active June 20, 2024 11:22
Mini tutorial for configuring client-side SSL certificates.

Client-side SSL

For excessively paranoid client authentication.


Updated Apr 5 2019:

because this is a gist from 2011 that people stumble into and maybe you should AES instead of 3DES in the year of our lord 2019.

some other notes:

@nelstrom
nelstrom / vim-plugin-directories
Created June 30, 2011 11:32
An overview of what belongs in each directory of a Vim plugin.
plugin
naming convention: name_of_plugin.vim
these files are sourced for all file types
doc
naming convention: name_of_plugin.txt
these files document the functionality of a plugin
color
naming convention: name_of_colorscheme.vim
@nifl
nifl / grok_vi.mdown
Created August 29, 2011 17:23
Your problem with Vim is that you don't grok vi.

Answer by Jim Dennis on Stack Overflow question http://stackoverflow.com/questions/1218390/what-is-your-most-productive-shortcut-with-vim/1220118#1220118

Your problem with Vim is that you don't grok vi.

You mention cutting with yy and complain that you almost never want to cut whole lines. In fact programmers, editing source code, very often want to work on whole lines, ranges of lines and blocks of code. However, yy is only one of many way to yank text into the anonymous copy buffer (or "register" as it's called in vi).

The "Zen" of vi is that you're speaking a language. The initial y is a verb. The statement yy is a simple statement which is, essentially, an abbreviation for 0 y$:

0 go to the beginning of this line. y yank from here (up to where?)