Recently I needed to use Nx with my oildu Kubuntu machine.I struggled with many problems to succeed. First of I recognised that Kubuntu network configuration fails (unconfigured) when I dont login to my account and get an X login. I have had network configuration manually edited to files /etc/network/interfaces and /etc/resolv.conf. But I used know that the manual settings at /etc/network/insterfaces is not considered by the network-manager rather network-manager uses its settings. Because newtwork-manager doesnt start without logging in to X, I was not able to connect to my machine in any way at network. The first major problem. To resolve this I removed network-manager and installed "wicd" instead.Put the appropiate settings to wicd configuration and rebooted the computer.Voila, my machine got connected to the network (I guess it still uses the wicd settings not the ones at those two files under /etc, but anyway). Now the second problem. OK i installed the freenx by usind freenx-ppa team's repo.But when I connect to machine and try to listen to music there is no sound even I check a setting at nxclient like "Add multimedia support". I researched and saw that it needs Esd (Esound) xine plugin. I firstly installed some packages like "pulseaudio-esound-compat" but no help. Then I found a package "libxine1-all-plugins" and installed. Finally choosing this device at Amarok's settings I got the sound from my remote machine. Lots of research and try gave me the sound :))
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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