i had a very large file in my linux dedicated server i leased from www.webune.com and i wanted to see what were the last list, it was an error log file and it was huge, but opening would mean i would have to wait a while just to see the last lines. well, linux being such a wonderful operating system, it has the tail command so to see the last 10 lines on my error log file all i had to do is send this command in the linux shell and it would get and show me the last ten lines:

tail error_log.txt

hey wait a minute, what about if you wanted to display the last 15 lines?
well you can do that with tail: this is how you would display them:

tail -15 error_log.txt

you can change 15 to whatever number of lines you want