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Linux is the best-known and most-used open source operating system. As an operating system, Linux is software that sits underneath all of the other software on a computer, receiving requests from those programs and relaying these requests to the computer’s hardware. Learn more on our what is Linux resource page.

The Linux cat and zcat commands are more useful than you may realize.

PDF-Shuffler and PDF Chain are great tools for modifying PDFs in Linux.

Complete our survey and voice your opinion on how much swap space to allocate.
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Share your favorite Linux backup solution in our new poll.
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CFS gives every task a fair share of processor resources in a low-fuss but highly efficient way.

Find out what makes a Linux-based open source audio player "audiophile quality."
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One of Apple's most important contributions to GNU/Linux was adopting CUPS in Mac OS X.
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Text files and Linux go hand in hand. Or so it seems. But how you view those text files depends on what tools you're comfortable with.