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/dev/null 2>&1 Versus /dev/null 2>1
Post 302502611 by glev2005 on Tuesday 8th of March 2011 12:29:02 PM
03-08-2011
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1. UNIX for Dummies Questions & Answers
Hi,
suppose you have the following line at your crontab :
5 * * * * /usr/mine/script > /dev/null 2>&1
now i understood that the " > /dev/null 2>&1 outputs both Standard outpout and Standard Error messages to the /dev/null device or file...
the first part , " > /dev/null " transfers... (1 Reply)
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Hi ,
I am importing some table from /dev/null i dont understand what is /dev/null
Sorry i am new to UNIX
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hello all,
In many shell scripts i found '> /dev/null' , i am not able to get this,
will any one please explain why we are using this.
thanks
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Hi, Anyone can help
My solaris 8 system has the following
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All permission are lrwxrwxrwx
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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 ".sh" file:
> /dev/null 2>&1
For example, the line below:
sh $HOME/stats/Rep777/Act_777.sh omc omc > /dev/null 2>&1
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Does >/dev/null 2>&1 and 2>&1 >/dev/null mean the same? (4 Replies)
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I apologize if this question has been answered else where or is too elementary.
I ran across a KSH script (long unimportant story) that does this:
if ; then
CAS_SRC_LOG="/var/log/cas_src.log 2>&1"
else
CAS_SRC_LOG="/dev/null 2>&1"
fithen does this:
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Hello All and a Happy New year to yous guys.
I'm running the below command on my AIX box and it keeps giving me the message that the file doesn't exist. I know the file don't exist, but I don't want to see the error. 2>/dev/null doesn't work.
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Hello
Can I just remove/delete flile ?
rw-r--r-- 1 root system 2385088512 Jun 30 21:25 /dev/null 2>&1
size of this flile is 2274.75 m and fill up my filesystem:
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Hello,
Does anyone know how to housekeeping the null 2>&1 file in /dev?
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LEARN ABOUT OPENSOLARIS
dev
dev(7FS) File Systems dev(7FS) NAME
dev - Device name file system DESCRIPTION
The dev filesystem manages the name spaces of devices under the Solaris operating environment. The global zone's instance of the dev filesystem is mounted during boot on /dev. A subdirectory under /dev may have unique operational semantics. Most of the common device names under /dev are created automatically by devfsadm(1M). Others, such as /dev/pts, are dynamic and reflect the operational state of the system. You can manually generate device names for newly attached hardware by invoking devfsadm(1M) or implicitly, by indirectly causing a lookup or readdir operation in the filesystem to occur. For example, you can discover a disk that was attached when the system was powered down (and generate a name for that device) by invoking format(1M)). FILES
/dev Mount point for the /dev filesystem in the global zone. SEE ALSO
devfsadm(1M), format(1M), devfs(7FS) NOTES
The global /dev instance cannot be unmounted. SunOS 5.11 9 June 2006 dev(7FS)