edisonywh

```
#!/bin/sh
echo "\nRunning rubocop 🚓 💨 💨 💨\n"

declare -a ERRORS=()

for file in $(git diff --cached --name-only | grep -E '.rb')
do
	ERRORS+=("$(rubocop $file | grep -e 'C:' -e 'E:')")
done

tomysmile

type below:

brew update
brew install redis

To have launchd start redis now and restart at login:

brew services start redis

abhinavmsra

Tips for Money Related Arithmetic in Ruby

1. Never use float for performing arithmetic calculations relating to money.

   Floating numbers can sometimes show funky behaviour. It is not Ruby’s fault but the very implementation of floating numbers raises precision issues.

Examples of odd behaviour:

richhollis

tables = [] # or ActiveRecord::Base.connection.tables
collation = "utf8_unicode_ci"
char_set = "utf8"
db = "your_database_name"
# write out
puts "USE #{db};"
puts "ALTER DATABASE #{db} CHARACTER SET #{char_set} COLLATE #{collation};"
tables.each do |t|
  puts "ALTER TABLE #{t} CHARACTER SET #{char_set} COLLATE #{collation};" # changes for new records
  puts "ALTER TABLE #{t} CONVERT TO CHARACTER SET #{char_set} COLLATE #{collation};" # migrates old records

sathishmanohar

# Login as root
ssh root@domain

# Create deploy user
adduser <username> #Adds User with username given. Enter Password when Prompted. Other Details are Optional
# Add user to sudo group
usermod -g <groupname> <username>

# Add .ssh/authorized_keys for deploy user

mustafaturan

#!/bin/sh
#
# nginx - this script starts and stops the nginx daemin
#
# chkconfig:   - 85 15 
# description:  Nginx is an HTTP(S) server, HTTP(S) reverse \
#               proxy and IMAP/POP3 proxy server
# processname: nginx
# config:      /usr/local/nginx/conf/nginx.conf
# pidfile:     /usr/local/nginx/logs/nginx.pid

cluePrints

Steps

• Build tools:

    sudo yum groupinstall "Development Tools"
  

• Dependencies:

    yum install -y gcc-c++ patch readline readline-devel zlib zlib-devel \
  

libyaml-devel libffi-devel openssl-devel make bzip2 autoconf automake libtool bison iconv-devel

robotmay

# I have an array of dates (both past and present) and a single date ('needle' below),
# for which I want to find the closest date in either direction. Here's my solution; 
# can you think of a better one?

dates.sort_by { |date| (date.to_time - needle.to_time).abs }.first

re5et

class Hash

  def dig(*path)
    path.inject(self) do |location, key|
      location.is_a?(Hash) ? location[key] : nil
    end
  end

end

JosephPecoraro

# 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