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add a mini-faq about std{in,out,err}
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@ -62,10 +62,12 @@ The special characters have the meaning:
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* Run both after creating and before removing the device.
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The command is executed via the system() function (which means you're giving a
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command to the shell), so make sure you have a shell installed at /bin/sh.
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command to the shell), so make sure you have a shell installed at /bin/sh. You
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should also keep in mind that the kernel executes hotplug helpers with stdin,
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stdout, and stderr connected to /dev/null.
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For your convenience, the shell env var $MDEV is set to the device name. So if
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the device 'hdc' was matched, MDEV would be set to "hdc".
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the device "hdc" was matched, MDEV would be set to "hdc".
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----------
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FIRMWARE
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