How to use /dev/null: 2-Minute Linux Tips

The video tutorial introduces Dev Null, a special device in Linux that acts like a black hole for command line outputs. It explains how to use Dev Null to discard uninteresting command outputs, handle errors by redirecting standard error, and selectively view errors by redirecting standard output. Additionally, it demonstrates how to use Dev Null to empty a file's contents without altering its permissions.

What command would you use to see only the errors generated by a command while sending standard output to Dev Null?

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Describe how to use Dev Null to empty a file without deleting it.

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