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You might not realize this, but a command-line-only OS like Peropesis has its place, and it can help you in your quest to master Linux.

Learn how to use a host of Linux commands in these 2-minute video tutorials from Sandra Henry-Stocker, author of the Unix as a Second Language blog. Learn how to use the powerful bc command in Linux ...

Linux is compelling because it's free and might work on a PC you already own. But there are so many challenges.