An SI prefix is a name that precedes a basic unit of measure to indicate a decimal multiple or fraction of the unit. Each prefix has a unique symbol that is prepended to the unit symbol.

The VMware BIOS passes that quickly, that you have no chance to enter the BIOS. If you want to access the BIOS to change the boot order, edit the .vmx file of you virtual machine with a text editor and add the following line.

bios.forceSetupOnce = "TRUE"

The next time you boot up the virtual machine, it will automatically boot into the BIOS. This configuration option then reverts to FALSE. You must set the option to TRUE each time you want to boot the virtual machine into the BIOS.

If you need to calculate the checksum of a file on Mac or UNIX simply use openssl:

openssl md5 DeleteCookies.zip

openssl sha DeleteCookies.zip

This command gives you the checksum of the file as a result.

chmod is the tool to change the permission on UNIX based systems.

For the options consult wikipedia.

Why is it worth to mention it here? If you change the permissions recusively ofer a directory tree, usually you do not have the right permissions for directories and for regular files.

You can avoid that by using find, as shown in the example:

find . -type d -print | xargs chmod 755

find . -type f -print | xargs chmod 644

Type “d” applies the change to directories, whereas type “f” applies it to files. find “.” means to all files starting in the current directory.

Activate the tftp server on your Mac. It works on Leopard and Snow Leopard:

To change the properties, edit the file

/System/Library/LaunchDaemons/tftp.plist

The default directory is /private/tftpboot.

Make this directory accessible for everybody.

chmod 777 /private/tftpboot

and start it with

sudo launchctl load -F /System/Library/LaunchDaemons/tftp.plist

If you want to stop the daemon, do

sudo launchctl unload /System/Library/LaunchDaemons/tftp.plist