Open Gedit with root privileges

gksudo nautilus

aletrnatively,

sudo nautilus

To access root user privileges in Unix,

sudo su
## prompts for password and grants access

sudo su -
## switch as root user without password

After installing sublime text, we must be able to open text files with it. Right click on a text file and you must see the option "open with sublime text". In case you don't , click Open with other applications and you should see Sublime text opti...

Ubuntu ships by default with the plugin for the Point-to-Point Tunneling Protocol (PPTP), but we need the plugin for the Cisco Compatible VPN (vpnc), that provides easy access to Cisco Connector based VPNs. To install the vpnc plugin, open your te...

There is no default location for apache configuration file (httpd.conf) as this can be configured. To know the location run the below commands.

ps -ef | grep apache

root      4053     1  0 06:26 ?        00:00:04 /usr/sbin/apache2 -k start
w...

This is to install adobe flash player in Ubuntu 14.04 or higher. This works for Firefox browser.

If you have a 32-bit OS, run

sudo apt-get update
sudo apt-get install flashplugin-installer

Make sure each of the commands executed success...

For Chromium browser versions greater than 34, to use flash one must install Pepper flash.

For Ubuntu 14.04 or newer, run

sudo apt-get install pepperflashplugin-nonfree
sudo update-pepperflashplugin-nonfree --status 
# to see what version of...

If you have to work with older versions of Rails, there might be discrepancy between the versions of Rails and Rubygems. Theats when you likely see the below message when you try to boot your rails app.

/home/lt-pc-528/.rvm/gems/ruby-1.8.7-p...

The extend method will mix a module’s methods at the class level.

On the other hand, the include method will mix a module’s methods at the instance level, meaning the methods will become instance methods of the class.

module Stringify
  # R...

Scenario : You have some manipulation done in your controller action and redirect the user to another action after that. Now you want the output of the manipulation available in the page user is redirected to.

You can pass the object with redirec...