Artha, a handy English thesaurus in Ubuntu

I 've been hunting for an offline dictionary in Ubuntu Linux which is having similar features as wordweb. It took months for me to get to know about Artha (a free GPLed English dictionary and thesaurus for Linux based on WordNet.) Just like word web to check meaning of any word what we have to do is highlight the word to be checked and hit Ctrl + Alt + W . You can choose Artha to show meaning either in pop-up balloon or from dictionary (just like in wordweb).
To install Artha open your terminal and type sudo apt-get install artha or use synaptic pack or else ubuntu software sources.

How I re-installed network manager in ubuntu offline

I've got an error when I tried to install network-manager from ubuntu liveCD, So I downloaded the package network-manager-gnome package to another computer and installed to mine. After that I used liveCD to install the network-manager package.

• sudo apt-cdrom add
   
• gksudo gedit /etc/apt/sources.list
   
  Uncomment the line
  # deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)]/ precise main restricted
  by removing # symbol
   
• sudo apt-get install network-manager