this post was submitted on 06 Sep 2024
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Cool Guides

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submitted 1 month ago* (last edited 1 month ago) by sag@lemm.ee to c/coolguides@lemmy.ca
 

cross-posted from: https://lemm.ee/post/41570987

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[–] SapientLasagna@lemmy.ca 3 points 1 month ago

/sbin is like /bin, but for system administrative type commands. /usr holds all the other software that isn't critical to get the system up and running.

A device file is a special file that's like a pointer to a piece of actual hardware, like a serial port or a hard drive. /dev also has some non-hardware special files like /dev/zero. When you read from that one, you get an endless stream of zeros. Or /dev/null, that discards any data that's written to it.