Install Gephi in Ubuntu 12.04

Step:
1. sudo add-apt-repository -r ppa:rockclimb/gephi-daily
2. sudo gedit /etc/apt/sources.list
3. and add the following line to end of it: deb http://ppa.launchpad.net/rockclimb/gephi-daily/ubuntu precise main
4. sudo apt-get update
5. sudo apt-get install gephi

When you do ‘sudo apt-get update’, it may show you an error: W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY CE88AE67BC982EC8

Then you should do this:
1. gpg –keyserver hkp://keyserver.ubuntu.com:80 –recv CE88AE67BC982EC8
ps: CE88AE67BC982EC8 is the number which has be showed in the error message.
2. gpg –export –armor CE88AE67BC982EC8 | sudo apt-key add -

After doing this, you should do:
1. sudo apt-get update
2. sudo apt-get install gephi

Finally, if you enter ‘gephi’ in the terminal, the gephi would be opened if you have installed it successfully.