cp output /dev/null results in not a directory Post: 302318893

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1. 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.

2. Solaris

URGENT - setup port and dump all output to /dev/null or a file

Please help urgently. I need to setup up some sort of service on a solaris server on a port. I dont need it do anything special, anything that is sent to this port from an external server should be dump to /dev/null or a flat file.. Can you help urgently?

3. 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

4. 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 ??

5. Ubuntu

tar not reading if output directed to /dev/null

I stumbled across a somewhat strange behavior of tar and find no explanation for it: i was testing a DVD for read errors and thought to simply tar the content and direct the output to /dev/null: tar -cvf - /my/mountpoint/*ts > /dev/null This way i expected the system to read the complete...

6. Shell Programming and Scripting

Error output of cat to /dev/null

Hello, I'm trying to send the error output of a 'cat' operation to /dev/null like this: cat /dirA/dirB/temp*.log > /dirA/dirB/final.log 2>/dev/null This works perfectly in a terminal, but not when placed in a script. If there are no files matching temp*.log the script outputs an error...

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

redirect the audio output to /dev/null

I'm using an text-to-speech synthesis in a script, and I need to redirect it's output to /dev/null how can I do that ? And how to redirect the stream to his normal output then （sound card ) ? thankx

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 DEBIAN

smfplay

SMFPLAY(1)						    BSD General Commands Manual 						SMFPLAY(1)

NAME

     smfplay -- play a standard MIDI file

SYNOPSIS

     smfplay [-mxy] [-g measure] [-d devname] [-i devname] midifile

DESCRIPTION

     The smfplay utility plays a MIDI file. While playing, it can route events from one midi(4) device to another. To stop performance, send an
     interrupt signal to smfplay (for instance by pressing control ^C on the terminal).  The options are as follows:

     -m 	  Use metronome. The metronome will follow tempo changes and time signature changes in the midi file.

     -x 	  Synchronise to an external midi(4) device. If the -i flag is used then playback will be synchronised to the input device else it
		  will be synchronised to the default device.

     -y 	  Send midi timing information to the default device. Useful if the output device is a slave MIDI sequencer.

     -g measure   Start playback at the given measure number.

     -d filename  Default midi(4) device on which to play the midi file. If not specified, the content of the MIDIDEV environment variable will be
		  used instead.

     -i filename  Alternate input midi(4) device. Voice events (notes, controllers, etc) received on the input device will be sent as-is to the
		  default device. Without this flag, the default device will be used for input.

     The smfplay utility is an interface to midish(1).	If more specific features are needed, the user may consider using midish(1).

EXAMPLES

     The following will play mysong.mid on device /dev/rmidi4 and will use metronome.

	   $ smfplay -m -d /dev/rmidi4 mysong.mid

SEE ALSO

     smfrec(1), midish(1), midiplay(1), midi(4)

BSD
								  August 22, 2005							       BSD

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Q1 :/dev/null Q2 -A

Discussion started by: big123456

2. Solaris

URGENT - setup port and dump all output to /dev/null or a file

Discussion started by: frustrated1

3. Shell Programming and Scripting

> /dev/null

Discussion started by: rrs

4. Solaris

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

Discussion started by: civic2005