How to become successful

This is a quite inspiring speech. Reaching a target or becoming successful takes time and pain. Rewards are difficult to obtain, but when you get it... it is awesome:

Create a Rails 3 project with "activerecord", "capybara", "devise", "git", "haml", "jquery", "rspec", "sass", "settingslogic"

You can run this commend:

rails new APP_NAME -m http://railswizard.org/50fc74d6dfa659c06971.rb -J -T

I have created the template using http://railswizard.org/

Unix: change password one line

echo -e "linuxpassword\nlinuxpassword" | passwd linuxuser

view raw change_password_one_line hosted with ❤ by GitHub

How to change the user password without re-typing the passowrd

You can use the following script to change the user password as root without having to re-type the password:

	#!/usr/bin/expect
	spawn passwd [lindex $argv 0]
	set password [lindex $argv 1]
	expect "password:"
	send "$password\r"
	expect "password:"
	send "$password\r"
	expect eof

view raw password hosted with ❤ by GitHub

I found this script helpful when called via ssh.

Catch all exceptions in your Ruby program

Just put your code between begin and rescue statements and print the error. An example:


ree-1.8.7-head :010 > begin
ree-1.8.7-head :011 > Testing.new
ree-1.8.7-head :012?> rescue Exception => msg
ree-1.8.7-head :013?> puts "Something went wrong ("+msg+")"
ree-1.8.7-head :014?> end
Something went wrong (uninitialized constant Testing)
=> nil

You can boot your application between begin and rescue and you will be able to print the error, perform an action, send an email in the rescue begin section:

begin
 MyApp.run!
rescue Exception => msg
 puts "Something went wrong ("+msg+")"
end