Today, I wrote a little AutoIt script that connects to a vnc server when starting my windows computer. If you are interested, here you are!
Archive for April, 2006
Tightvnc viewer startup script
Wednesday, April 26th, 2006Using bash variables in awk
Friday, April 21st, 2006While there seems nothing wrong with this:
sign="--"
awk '{if ($1 == $sign ) print $1 }'
..it doesn’t give the intended result. To be able to use bash variables in awk, you first need to assign the variables with the -v option:
sign="--"
awk -v sign="$sign" '{if ($1 == sign ) print $1 }'
From the awk man page:
The option -v followed by var=value is an assignment to be done before (the awk) prog is executed; any number of -v options may be present.
Questions and Answers!
Tuesday, April 11th, 2006New nerd note section! Here you might find the answers you previously looked for when you where visiting nerdnotes.org.
For the moment you can find the ‘Q and A’ pages at the top right side. As it starts to grow, I’ll have to come up with another solution.
hdiutil
Saturday, April 8th, 2006Met hdiutil kun je vanaf de command line eigenlijk alles doen wat je met ‘Disk Utility’ kan doen. Ook het dubbel klikken van een dmg bestand vanuit finder is een actie die je hiermee kunt automatiseren en dus ook vanaf afstand met ssh kan uitvoeren. Hieronder een voorbeeld hoe je AdiumX zou kunnen installeren:
$ wget http://adiumx.cachefly.net/AdiumX_0.89.1.dmg $ hdiutil attach AdiumX_0.89.1.dmg /dev/disk4 Apple_partition_scheme /dev/disk4s1 Apple_partition_map /dev/disk4s2 Apple_HFS /Volumes/Adium X 0.89.1 $ ditto /Volumes/Adium\ X\ 0.89.1/Adium.app /Applications/ $ open /Applications/Adium.app
Maar goed, wat is er nou makkelijker dan:
Voor alle opties, zie ‘man hdiutil‘
vncmanager
Saturday, April 1st, 2006When starting a vnc server, the vncserver script takes care of starting Xvnc with the right command line options. It returns the display number it has chosen for the new desktop session:
$ vncserver New 'linuxbox:4 (me)' desktop is linuxbox:4 Starting applications specified in /home/user/.vnc/xstartup Log file is /home/me/.vnc/linuxbox:4.log
It’s important to remember this number because you need it when using vncviewer or if you want to stop the server.
Well, not anymore when using vncmanager!!
Vncmanager integrates listing, starting and stopping vncservers. I initially wrote it to manage vncservers on a cluster of linux machines. The whole setup however, was quite site specific. The script basically queries all the linux nodes for information on running vncservers.
The version published here is adapted for use on a single machine.
The UI is done with dialog which allows you to display input boxes, menus etc. from shell scripts. For example, the following code generates the main menu of vncmanager:
dialog --backtitle "vncmanager" \
--title "Main menu" \
--output-fd 3 \
--menu "What would you like to do:" 15 65 6 \
1 "List my running VNC servers" \
2 "Start a VNC server" \
3 "Stop a VNC server" \
4 "Set my VNC password" \
5 "Quit"
And what’s a new script without screenshots 
The multiple hosts version requires some work to make it less dependent on the cluster configuration. I’ll post it here soon.