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Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
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Is it possible? If it is, it's not obvious in any way, nor documented in the manual.
I think that would be an interesting feature if it currently lacks it. I don't really know, but I think it wouldn't be so much of a huge thing to implement the possibility of running commands such as "openbox-command menu-id-whatever" to make a given menu pop-up; or "openbox-command nexdesktop" so a script could move the view to a different desktop (but perhaps it can be done with...
After a Windows client has been used inside VirtualBox for some time (particularly if large files have been removed), it can be useful to compact the storage container image (VDI) by removing unused space.
First, the space needs to be cleaned inside the client. This requires defragmenting the drive, and then running a program such as SysInternals sdelete to zero the unused space, so that the VirtualBox utilities are able to compact the file.
When changing network cards, or moving drives to a new computer, the network interfaces will be assigned new names (eth0, eth1, etc). This is so that the interfaces will retain their names between boots but not clash with other interfaces (on the assumption that the old ones may be only temporarily missing). However, if the new interface is a replacement for the old one, it is often more convenient to reuse the same name that the old one had.