I like this bash command prompt because it changes the window title of the terminal session as well. Now I won't have to look it up anymore. Goes back to the original purpose of this site I guess...

In oracle, you can copy data between linked databases via normal SQL.

insert into table select * from table@db_link

The databases can even be on different physical machines.

It has always been a pain in the neck to kill a bunch of java processes that have been spawned off from some program that I have been running.. Here's how I do it now:

ps | grep java | `awk '{print "kill -9 " $1'}`

awk is a pretty cool utility.. I'm a complete novice with it, but as a parser it seems pretty powerful.