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Passing a hash reference to a subroutine (Perl)

perl_logoQ. How do I pass a hash reference to a subroutine in Perl?

A. This can be achieved by preceeding the hash with a slash when passing:

Tuesday, 28 June 2011 12:25
 

Update hosts file with VBS (Windows)

VBSccript_file_format_iconQ. I have some hosts that for some reason don't work with the DNS entries. Can I update hosts files on all machines automatically?

A. Ideally, you should fix the DNS, however, this is a quickfix and a show of VBS power in MS world. You can use the following script to achieve this.

Friday, 27 May 2011 13:34
   

Adding a printer using scripts (Windows)

VBSccript_file_format_iconQ. I would like to be able to add a printer using a login/startup script in windows.

A. There are several ways to do so. You can use VBS scripts or batch scripts.

Using batch:

rundll32 printui.dll,PrintUIEntry /in /n \\server\printername
rundll32 printui.dll,PrintUIEntry /in /n \\server\printername /y

Thursday, 26 May 2011 07:58
   

Disable Unity on Ubuntu 11.04

ubuntu-logo-smQ. My netbook is really slow after upgrading to 11.04. Videos are choppy and the computer heats up a lot more. Is there any way to fix that?

 

A. One solution is to get a better netbook, with a better video card, but its not practical for most of us. A quick way to fix this is on the login screen, to select Ubuntu Classic Desktop. This should bring back the desktop you've had before the upgrade:

Update: Below is for Ubuntu 11.04 - here's how to disable Unity for Ubuntu 11.10

Wednesday, 20 April 2011 06:34
   

CPU and Memory indicator (Ubuntu 11.04)

Q. My CPU and Memory indicators are missing in Ubuntu 11.04 under Unity. Is there any way to get them back?

A. No, not the one that you are used to, but here's one for Unity specifically. It doesn't have the nice graphics, but it'll do what you want.

Monday, 18 April 2011 07:04
   

Bring lost window to main monitor (Win 7)

Q. I've unplugged one of my monitors and now the new application windows that open are not visible

A. There are several ways to do it, the easiest is the following:

1. Select the application window by clicking on it in the taskbar

Wednesday, 30 March 2011 11:09
   

Firefox 4 doesn't save tabs (Firefox 5 - now)

firefox-logoQ. I've downloaded Firefox 4 and now I am no longer able to save my tabs. How can I fix that? (The same problem still exists in Firefox 5 through the latest Firefox version - it doesn't look like they are going to fix this)

A. By default this function has been disabled. To enable it, do the following:

1. In the address line, type in "about:config" (without quotation marks). Click on "I'll be careful, I promise!"

Tuesday, 22 March 2011 15:42
   

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