Ok trying to configure a windows xp guest on this server, I did the directions on the manual at virtualbox.org. I used VBoxHeadless which is great for a server environment. Previously I tried virtual OSE provided by Ubuntu repos whose version is 3.2.8 at the time.But it seemed that OSE doesnt support vrdp although here is a post claiming otherwise http://forums.freebsd.org/showthread.php?t=13499. Then I decided to install closed source edition from the provider according to this post http://www.howtoforge.com/vboxheadless-running-virtual-machines-with-virtualbox-4.0-on-a-headless-ubuntu-10.10-server.Everything worked fine and I installed the guest host. Then I noticed that there are two mouse pointers and the resolution is not adjustable. Then after some work I reinvented (remembered) that one must need to install guest additions thing too. After installing it now the machine working nice.
I was trying to use sub (or gsub) function in awk to delete an \r from the end of line. For that purpose I used dum=sub(/\r/,"",$0) and thought that the variable "dum" will be filled with the changed value of $0. But I realised that sub function only make the change and returns 0,1 accordingly. So I wrote like this sub(/r/,"") ; x=$0;
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