Unix command ?

[crazyheffro]

I am having trouble publishing a site. I want to look at the server log to figure out what is going on, but it is fricken huge (.5gig) I don't want to spend 20 mins downloading the beast to everytime. Is there a way to view the last X bytes of a file?
Thanks

[crazyheffro]

nevermind. I found an answer:

tail -n # filename
eg:
tail -n 50 access.log
will give you the last 50 lines of the log file access.log