/dev/null Post: 302207630

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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 what is the use of it?

when do you use the path /dev/null

7. 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

8. 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:...

9. 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:...

10. Shell Programming and Scripting

2>/dev/null

Friends have the following problem a search may not find anything which would correct example: ls -ltr *prueba.txt | nawk '{ print $9 }' > Procesar.dat 2>/dev/null When he finds nothing gives me the following error ls: prueba.txt: No such file or directory because 2> / dev / null...

LEARN ABOUT REDHAT

showq

SHOWQ(8)						      System Manager's Manual							  SHOWQ(8)

NAME

       showq - list the Postfix mail queue

SYNOPSIS

       showq [generic Postfix daemon options]

DESCRIPTION

       The showq daemon reports the Postfix mail queue status.	It is the program that emulates the sendmail `mailq' command.

       The showq daemon can also be run in stand-alone mode by the super-user. This mode of operation is used to emulate the `mailq' command while
       the Postfix mail system is down.

SECURITY

       The showq daemon can run in a chroot jail at fixed low privilege, and takes no input from the client. Its service  port	is  accessible	to
       local untrusted users, so the service can be susceptible to denial of service attacks.

STANDARDS

       None. The showq daemon does not interact with the outside world.

DIAGNOSTICS

       Problems and transactions are logged to syslogd(8).

BUGS

       The showq daemon runs at a fixed low privilege; consequently, it cannot extract information from queue files in the maildrop directory.

SEE ALSO

       cleanup(8) canonicalize and enqueue mail
       pickup(8) local mail pickup service
       qmgr(8) mail being delivered, delayed mail
       syslogd(8) system logging

LICENSE

       The Secure Mailer license must be distributed with this software.

AUTHOR(S)
       Wietse Venema
       IBM T.J. Watson Research
       P.O. Box 704
       Yorktown Heights, NY 10598, USA

																	  SHOWQ(8)

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