/dev/null Post: 302207631

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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 LINUX

biff

BIFF(1)                                                     BSD General Commands Manual                                                    BIFF(1)

NAME

     biff -- be notified if mail arrives and who it is from

SYNOPSIS

     biff [ny]

DESCRIPTION

     Biff informs the system whether you want to be notified when mail arrives during the current terminal session.

     Options supported by biff:

     n     Disables notification.

     y     Enables notification.

     When mail notification is enabled, the header and first few lines of the message will be printed on your screen whenever mail arrives.  A
     ``biff y'' command is often included in the file .login or .profile to be executed at each login.

     Biff operates asynchronously via the comsat(8) service. If that service is not enabled, biff will not do anything. In that case, or for syn-
     chronous notification, use the MAIL variable of sh(1) or the mail variable of csh(1).

SEE ALSO

     csh(1), mail(1), sh(1), comsat(8)

HISTORY

     The biff command appeared in 4.0BSD.

BUGS

     su(1), and biff don't seem to get on too well. This is probably due to the tty still being owned by the person using su. This can result in
     ``Permission denied'' messages when attempting to change the biff status of your session.

     Please report bugs to netbug@ftp.uk.linux.org including diffs/patches, compiler error logs or as complete a bug report as is possible.

Linux NetKit (0.17-pre-20000412)                                   July 31, 1999                                  Linux NetKit (0.17-pre-20000412)

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