when we install some package then their are some commands which are shown on the console but we cant see all of them when they are more than a limit. i wanted to know that how can we save th efull info which has been displayed without loosing even a single word...

Redirection is your friend....

When you run any Linux command, you can redirect any output to a file. You will want to read up on this, because some options are not intuitively obvious.

Simple example:
Read a file named "stuff" and put the output in a new file named "mystuff":
cat stuff >mystuff

when you run certain commands you can have normal output + error messages. Te be sure that it ALL goes to a file, you need to redirect the "stderr" stream also--like so
cat stuff >mystuff 2>myerrors
There are also ways to get stdout and stderr to go to one file

The book I recommend for this kind of thing is the Bash Guide for Beginners, by Machtelt Garrels. It is at tldp.org

Alternatively a pipe into tee is a good choice, too. Lets you
eat the cake AND have it :}

command 2>&1 | tee output.txt



Cheers,
Tink

as said above i am not able to see the progress on the terminal . i actually want that along with display on screen i can get redirection also..

any idea's....

I highly recommend re-reading my previous post.

As I said above: tee does exactly that.


Cheers,
Tink