prevent accidental closing of a window
 

Hi all,
I am running a program in gnome-terminal window (using metacity window manager) which will take many hrs to complete.
I was wondering if there is some way to "lock" that window, so that accidental closing of that window is prevented.

Not that I know of. In the future, use a program called screen for tasks like this - if the terminal emulator is closed, the screen session is just detached and continues running, and can be reattached at any time later.

thanx.. i knew about this tool... but never knew that this is so powerful

It's a fantastic piece of software and one of the first things I install on any new machine. It's also great if you want to leave a CLI application running remotely - back in the day, I couldn't do any torrenting from where I was, so I had a server in another state that had rtorrent (command-line client) running in a perpetual screen session. I'd used screen before for the multiplexing feature, but I really gained something the day I figured that one out. : )