HOW TO SPEED UP UBUNTU?

My 'UBUNTU 14.04' takes too much time after first boot. Well genius people will have many tricks and tweaks to speed up their systems but as a beginner  I am researching in the internet about following things which can possibly boost up performance of Ubuntu:

1. Packages / Software installed in my #Ubuntu.
2. Distinguishing useful / obsolete software.
3. Removing unnecessary software, Releasing space, which can increase the speed.

This could be one way of solving the problem of slow performance of speed.

Today I will show  some ways to see the packages  and software installed in Ubuntu.

1. Synaptic Package Manager

To open the Synaptic Package Manager in terminal type:

algosig@surfer:~$ sudo synaptic

This will open the GUI of Synaptic Manager. From there you can explore the installed packages.

    2. dpkg --get-selections

To get a list of packages installed locally do this in your terminal:

algosig@surfer:~$ sudo dpkg --get-selections | grep -v deinstall

To save that list to a text file called packages on your desktop do this in your terminal:

algosig@surfer:~$ dpkg --get-selections | grep -v deinstall > ~/Desktop/packages

     3.  aptitute

To get just the packages which were expressly installed (not just installed as dependencies), you can run

algosig@surfer:~$ aptitude search '~i!~M'

This will also include a brief description, which you may want. If not, use the option -F '%p'

     4. Create Backup

Create a backup of what packages are currently installed:

algosig@surfer:~$ dpkg --get-selections > list.txt

Then (on another system) restore installations from that list:

algosig@surfer:~$ dpkg --clear-selections

algosig@surfer:~$ sudo dpkg --set-selections < list.txt

To get rid of stale packages

algosig@surfer:~$ sudo apt-get autoremove

To get installed like at backup time (i.e. to install packages set by dpkg --set-selections)

algosig@surfer:~$ sudo apt-get dselect-upgrade

There are many documentations available in the internet and I searched only few intelligent peoples'  brain. There are many users out there with creative ideas to manipulate terminals and  bash scripts. it can by you as well.

So now I know to list out all the packages and save them in txt file. Next time I will show some methods to remove the old and obsolete packages. In a few blogs we will be able to maintain the speed of our OS i.e. UBUNTU

See you guys soon.