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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.
Click Here to receive this Complete Guide absolutely free.
Tech Support Written by Jeremy Garcia Sunday, 15 January 2006 One of the unique things about Unix and Linux is that everything is a file. Of course, there are many different kinds of files, including regular files, directory files, and device files. Even interprocess communication mechanisms, such as pipes and semaphores, are files. Because everything is a file, a running system has a very large number of open files at any given point in time. What if you want to know what files are open, what files a specific process has open, what files on a specific device are open, or what files a specific user has open? Enter List Open Files, or lsof, which can do this and more. lsof was written by Victor Abell and is available from http://people.freebsd.org/~abe/. You can also install lsof on Debian with the quick apt-get install lsof.