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2> /dev/null

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Blue Badger answered on March 18, 2020 Popularity 8/10 Helpfulness 5/10

answer 2> /dev/null

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2> /dev/null

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> file redirects stdout to file
1> file redirects stdout to file
2> file redirects stderr to file
&> file redirects stdout and stderr to file

2&1> file redirects stdout and stderr to file

/dev/null is the null device it takes any input you want and throws it away. It can be used to suppress any output.

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Contributed on Sep 23 2020

Blue Badger

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What does '>/dev/null 2>&1' mean

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> is for redirect

/dev/null is a black hole where any data sent, will be discarded

2 is the file descriptor for Standard Error

> is for redirect

& is the symbol for file descriptor (without it, the following 1 would be considered a filename)

1 is the file descriptor for Standard Out

Therefore >/dev/null 2>&1 is redirect the output of your program to /dev/null. Include both the Standard Error and Standard Out.

Much more information is available at The Linux Documentation Project's I/O Redirection page.

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Contributed on Mar 18 2020

Bored Coder

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what is /dev/null

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What is /dev/null ?

/dev/null is like a black hole, "whatever you write to /dev/null will be discarded, forgotten into the void."

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Contributed on Sep 15 2022

Noelito

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2/dev/null

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grep -r "^The" /etc/ 2>/dev/null

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Contributed on Aug 22 2022

fast_and_the_curious

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/dev/null 2>&1

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>> /dev/null redirects standard output (stdout) to /dev/null, which discards it.

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Contributed on Jan 22 2022

Shahbaz

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2> /dev/null

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