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Comment Re:Useful tricks. (Score 4, Insightful) 2362

Next trick, back ticks. `` Back ticks substitute the output of a command within a command.
Ex. Name a file after the date. echo "hi" > `date +%Y%M%d`.txt

Don't use backticks unless you are stuck with bourne shell. Use $() instead:

echo hi > $(date +%Y%M%d).txt

They have two benefits over backticks: you can nest them and they are easier to see.

Linux Business

Open Source and the "Xen" of Xen 118

willdavid writes "In a follow-up to his original look at what happened to Xen, Jeff Gould talks to XenSource CTO Simon Crosby. Usually we hear about how open source provides freedoms for end users. However, this article talks about the difficulty a small software developer has with an open source license, in particular, the need to prevent Red Hat, IBM or Novell from running away with all the business revenue."

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