A Techies' Blog

Are you running Snow Leopard on Intel or AMD Computers by any of the desktop virtualization software VMware or VirtualBox? Then this post will be helpful to increase screen resolution size of Snow Leopard Virtual Machine to get full screen. Adjusting screen size including wide screen on VMware is easy since VMware tools ( Not official, with VGA driver) available, but setting up screen resolution in VirtualBox is slightly different for each installation methods [...]

Last year, we built a DIY Linux workstation with an eye toward creating a high-end development machine with the ability to run multiple virtual machines at the same time. Now, we’re going to build a machine fit for testing server operating systems to include functioning as a KVM or Xen virtual host. The other goal is to have a flexible machine capable of being quickly reconfigured for testing purposes. As new versions of operating systems are released, they must be tested with any custom software applications before being putt into production. Our DIY server will, hopefully, fulfill this role perfectly [...].

Unlike FTP, HTTP provides strong authentication and encryption, as well as caching and proxy support — and because WebDAV works over HTTP, WebDAV gets all of that for free. SSH would be another option, but SSH is a bit more limited in terms of moving files around, and it has nowhere near the quality of client support and tools available. [...]

If you are using sudo you most certainly know that the default setup will require the user running sudo to enter a password (by default the password of the user running sudo).
I will show you in this post what options sudo offers related to passwords and how they can be used. [...]

VBoxManage for controlling VirtualBox on the Command Line

The main tool for controlling VirtualBox is called VBoxManage. The VirtualBox manual has 27 pages describing all the available paramaters for using VirtualBox. The VirtualBox manual is a great resource to accompany this tutorial. [...]

You can use aliases to decrease the amount of typing you need to do to get
commands you commonly use. Examples of fairly popular aliases include (in
Bourne shell style, as in /bin/sh, bash, ksh, and zsh):

alias lf=”ls -FA”
alias ll=”ls -lA”
alias su=”su -m”

In csh or tcsh, these would be

alias lf ls -FA
alias ll ls -lA
alias su su -m

To remove an alias, you can usually use ‘unalias aliasname’. To list all
aliases, you can usually type just ‘alias’.

Want to know how many words, lines, or bytes are contained in a file? Type
“wc filename“.

To see how long it takes a command to run, type the word “time” before the
command name.

Guess who’s been missing from the Linux revolution? Senior citizens. At least that’s what KiWi PC is arguing with its new desktop.
Created by the folks who brought us the PeeWee PC for children, the KiWi PC runs a customized version of Ubuntu via an Intel Atom D510 processor, and comes with 2GB of RAM, 250GB [...]

Want to use sed(1) to edit a file in place? Well, to replace every ‘e’ with an ‘o’, in a file named ‘foo’, you can do:

sed -i.bak s/e/o/g foo

And you’ll get a backup of the original in a file named ‘foo.bak’, but if you want no backup:

sed -i '' s/e/o/g foo