sh script dev null

Much more information is available at The Linux Documentation Now we alread...

Much more information is available at The Linux Documentation Now we already have > /dev/null at the end of the script which means all the.

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In this case, since you're launching the process over ssh from a shell...

In this case, since you're launching the process over ssh from a shell script, program dev/null means that the program is taking its input.

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In this case, something is being redirected into /dev/null, and Given that ...

In this case, something is being redirected into /dev/null, and Given that context, you can see the command above is redirecting standard output into /dev/null line by appending "2>>/var/log/logfile" to a shell command.

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2> means "redirect standard-error" to the given file. /dev/nul...

2> means "redirect standard-error" to the given file. /dev/null is the null file. Anything written to it is discarded. Together they mean "throw away.

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

/dev/null redirects standard output (stdout) to /dev/null, which discards it. [any command] >>/dev/null 2>&1 redirects all stderr to stdout, and.

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TL;DR: >/dev/null 2>&1 || true effectively silences the command, ...

TL;DR: >/dev/null 2>&1 || true effectively silences the command, throwing away any (error or normal) output and the result of the command, but.

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How do I redirect output and errors to /dev/null under bash / sh shell scri...

How do I redirect output and errors to /dev/null under bash / sh shell scripting? How do I redirect the output of stderr to stdout, and then redirect.

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Well, technically you're not redirecting anything here. Calling script...

Well, technically you're not redirecting anything here. Calling script /dev/null just makes script save the whole typescript into /dev/null which in.

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Hi, I am new into UNIX shell scripting and I am wondering what is the meani...

Hi, I am new into UNIX shell scripting and I am wondering what is the meaning of the below text which appears at the end of each line in the  Meaning of 2>/dev/null/.

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In some operating systems, the null device is a device file that discards a...

In some operating systems, the null device is a device file that discards all data written to it but reports that the write operation succeeded. This device is called /dev/null on Unix and Unix-like systems, NUL: or NUL.

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/dev/null - Use to send unwanted output of program. This is special Linux f...

/dev/null - Use to send unwanted output of program. This is special Linux file which is used to send any unwanted output from program/command. Syntax.

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With Shell Script this is not different, and a quite common idiom, but not ...

With Shell Script this is not different, and a quite common idiom, but not so well understood, is the 2>&1, like in ls foo > /dev/null 2>&1.

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Something of a bit bucket, black hole, and digital garbage disposal, /dev/n...

Something of a bit bucket, black hole, and digital garbage disposal, /dev/null is one of the very clever things that Unix introduced into the.

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I am big fan of shell scripts and so love to learn interesting stuff from o...

I am big fan of shell scripts and so love to learn interesting stuff from other's shell scripts. OK=0 FAIL=1 function require_curl() { which curl &>/dev/null if [ $?

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dev/null is often referred to a black hole in Linux based systems. It disca...

dev/null is often referred to a black hole in Linux based systems. It discards all the data written to it and sends EOF (End of File) character to any.

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