Feb 17, 2017 · By specifying > /dev/null in the command (the redirection can generally go anywhere within the command, but by convention it goes at the end or very rarely at the beginning), you specify that the standard output (implicit 1, but can be specified using 1> instead of just >) should be redirected to write to /dev/null, which discards everything ...

Sep 18, 2021 · pg@TREX:~$ ls -l /dev/null crw-rw-rw- 1 root root 1, 3 Sep 18 08:09 /dev/null As you can see /dev/null is a character device. Data streams there unbuffered, character by character and gets immediately discarded, character by character.

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Aug 28, 2012 · One of those devices is a pseudo-device called null. /dev/null is an empty device - a vacuum if you will. It does nothing besides being a hole where you put something and it disapears. If you copy /dev/null to some file like: cp /dev/null /tmp/foo the specified file will be empty. Detailed information about redirecting output you can be found here.

Apr 15, 2016 · Writing to /dev/null does not affect the HDD in any way. The same is true for Windows NUL. One thing that is different is that NUL is a "special" name, whereas /dev/null is not. When you use /dev/null on Linux (or any Unix), the OS goes and looks for the file with that name.

Nov 15, 2020 · /dev/null is also known as the bit-bucket. When anything is written, or redirected to /dev/null - it is effectively lost. /dev/null can also be used as an input device, which will provide a stream of zeros. So you could also completely wipe a usb drive by using:

Feb 27, 2024 · I'm searching for an equivalent of a sinkhole email address. Essentially, I need a discard mechanism similar to /dev/null or the non-routed range 240.0.0.0/4. Options like null@, devnull@, or none@ seem plausible, but there's a concern that these addresses might already be in use. Is there a de facto standard for this specific use case? Update:

Sep 28, 2019 · /dev/null is a character device file, i.e. an interface to a device driver. This specific device is a dummy device (not representing a real hardware). It is specially made to be a bottomless trash can; that you can dump any program's output into it, in case you don't want them to get on display or anywhere else.

Oct 27, 2009 · First, you need to delete the current /dev/null: rm /dev/null Then create a replacement file with the same name and some adequate permissions: touch /dev/null chmod 666 /dev/null You may now visualize what is sent to /dev/null: tail -f /dev/null Finally to bring back /dev/null to its normal behaviour:

Feb 6, 2017 · /dev/null is a standard Unix device driver that simply throws away what it receives. It's often used to throw away unwanted output or for testing. It's often used to throw away unwanted output or for testing.