2>/dev/null Post: 302961314

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1. UNIX for Dummies Questions & Answers

>/dev/null

Maybe it's an stupid question but remeber... I'm Junior.. I use command line to run programs, and some of them gives a lot of information when, for example, you open a window or other actions. That's really bad because my terminal gets full of unwanted messages, so I use "bin file & >/dev/null"...

2. UNIX for Dummies Questions & Answers

/dev/null

Hi , I am importing some table from /dev/null i dont understand what is /dev/null Sorry i am new to UNIX sam71

3. UNIX for Advanced & Expert Users

Q1 :/dev/null Q2 -A

Hi, Q1-What does nroff -ms > /dev/null Q2- What does mean -A under STAT column : ps aux |head -20 UTIL PID %CPU %MEM SZ RSS TTY STAT STIME TIME COMMAND root 516 93,0 0,0 12 12 - A 04 nov 3906:51 wait Thank you.

4. Shell Programming and Scripting

> /dev/null

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 sudha

5. Solaris

What is /dev/tty /dev/null and /dev/console

Hi, Anyone can help My solaris 8 system has the following /dev/null , /dev/tty and /dev/console All permission are lrwxrwxrwx Can this be change to a non-world write ?? any impact ??

6. Shell Programming and Scripting

/dev/null

Hi expert, May I know what is the difference between below cron tab entry ? 0,12 * * * * /abc/myscript.sh > /dev/null 2>&1 0,12 * * * * /abc/myscript.sh

7. Shell Programming and Scripting

/dev/null what is the use of it?

when do you use the path /dev/null

8. UNIX for Dummies Questions & Answers

/dev/null 2>&1 Versus /dev/null 2>1

How are these two different? They both prevent output and error from being displayed. I don't see the use of the "&" echo "hello" > /dev/null 2>&1 echo "hello" > /dev/null 2>1

9. Shell Programming and Scripting

Redirecting standard out to /dev/null goes to file "/dev/null" instead

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: /usr/bin/echo "heartbeat:...

10. Shell Programming and Scripting

Help with /dev/null Please

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. bash-3.00$ ls -l C* | wc -l 2>/dev/null ls:...

LEARN ABOUT MOJAVE

system_profiler

SYSTEM_PROFILER(8)					    BSD System Manager's Manual 					SYSTEM_PROFILER(8)

NAME

     system_profiler -- reports system hardware and software configuration.

SYNOPSIS

     system_profiler [-usage]
     system_profiler [-listDataTypes]
     system_profiler [-xml] dataType1 ... dataTypeN
     system_profiler [-xml] [-detailLevel level]

DESCRIPTION

     system_profiler reports on the hardware and software configuration of the system.	It can generate plain text reports or XML reports which
     can be opened with System Information.app

     Progress and error messages are printed to stderr while actual report data is printed to stdout. Redirect stderr to /dev/null to suppress
     progress and error messages.

     The following options are available:

     -xml		 Generates a report in XML format.  If the XML report is redirected to a file with a ".spx" suffix that file can be opened
			 with System Information.app.

     -listDataTypes	 Lists the available datatypes.

     -detailLevel level  Specifies the level of detail for the report:

			 mini	       report with no personal information

			 basic	       basic hardware and network information

			 full	       all available information

     -timeout		 Specifies the maximum time to wait in seconds for results.  If some information is not available within the specified
			 time limit then an incomplete or partial report will be generated. The default timeout is 180 seconds. Specifying a time-
			 out of 0 means no timeout.

     -usage		 Prints usage info and examples.

EXAMPLES

     system_profiler
       Generates a text report with the standard detail level.

     system_profiler -detailLevel mini
       Generates a short report containing no personal information.

     system_profiler -listDataTypes
       Shows a list of the available data types.

     system_profiler SPSoftwareDataType SPNetworkDataType
       Generates a text report containing only software and network data.

     system_profiler -xml > MyReport.spx
       Creates a XML file which can be opened by System Profiler.app

AUTHORS

     Apple Computer, Inc.

Darwin								   June 30, 2003							    Darwin

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

>/dev/null

Discussion started by: piltrafa

2. UNIX for Dummies Questions & Answers

/dev/null

Discussion started by: sam71

3. UNIX for Advanced & Expert Users

Q1 :/dev/null Q2 -A

Discussion started by: big123456

4. Shell Programming and Scripting

> /dev/null

Discussion started by: rrs

5. Solaris

What is /dev/tty /dev/null and /dev/console

Discussion started by: civic2005

6. Shell Programming and Scripting

/dev/null

Discussion started by: olaris

7. Shell Programming and Scripting

/dev/null what is the use of it?

Discussion started by: webmunkey23

8. UNIX for Dummies Questions & Answers

/dev/null 2>&1 Versus /dev/null 2>1

Discussion started by: glev2005

9. Shell Programming and Scripting

Redirecting standard out to /dev/null goes to file "/dev/null" instead

Discussion started by: jbmorrisonjr

10. Shell Programming and Scripting

Help with /dev/null Please

Discussion started by: bbbngowc

LEARN ABOUT MOJAVE

system_profiler