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unix os

What is the use of UNIX source command under bash or any other shell? How do I use source command under UNIX / OS X / Linux operating systems?
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I have UNIX workstation and Linux server at work and Ubuntu desktop at home. It is recommended that I use ssh tunnel the VNC protocol for secure communication. How do I access my UNIX workstation desktop here at home over the Internet using ssh?
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How do I securely transfer files from one UNIX / Linux server to another UNIX server using Windows or Linux desktop clients without using ftp client?
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How do I identify remote server os and apps using UNIX or Linux command line options?
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Run / Execute Command Using SSH

How do I run a command using ssh under UNIX, OS X, *BSD, and Linux operating systems?
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How To: Rename A File In Bash

How do I rename a file in bash under UNIX / OS X / Linux / BSD operating systems?
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Ubuntu Linux: Install KDE 4.2

Q. How do I install KDE version 4.2 under Ubuntu Linux using binary method?
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