Error output of cat to /dev/null Post: 302493935

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

error piping nohup to /dev/null

Hi, I have a script as follows: #!/bin/sh nohup ./my_program >& /dev/null & However, i get a "Generated or received a file descriptor number that is not valid" whenever I run it. running the command up in prompt is ok though. if i change the first line to #!/bin/csh i get a then:...

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. 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 ??

4. UNIX for Dummies Questions & Answers

cat /dev/null

Hi, Excuse my ignorance here - I'm a networks man and my knowledge of all things unix is somewhat limited. We have a very large file (/var/tmp/mond.log) that we need to zero - does the "cat /dev/null > /var/tmp/mond.log" command achieve this?

5. UNIX for Dummies Questions & Answers

cp output /dev/null results in not a directory

Hello, I am working on a script to measure the read performance of a busybox environment. The logical choice is to use a command line like: (time cp * /dev/null) 2> /tmp/howlong.txt Ah, the rub is cp or /dev/null will only accept a single file at a time. The result in the txt file is and...

6. 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...

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. HP-UX

/dev/Null error

Hi Guru's, I am trying to test the network speed or load by this command. but getting error " Not Connected ". Could you guys please help. ftp> put "|dd if=/dev/zero bs=8k count=1000000" /dev/null Not connected. Please use code tags!

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

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

LEARN ABOUT REDHAT

xchkdmp

xchkdmp(8)					       JFS utility - dump fsck.jfs log file						xchkdmp(8)

NAME

       xchkdmp - dump the contents of a JFS fsck log file created with xchklog

SYNOPSIS

       xchkdmp [ -f input.file ] [ -V ]

DESCRIPTION

       xchkdmp dumps the contents of a JFS fsck log file that was created by JFS utility xchklog.  If no input file is specified, the default path
       and file name (<pwd>fscklog.new) is used.  The output is written to standard out.

OPTIONS

       -f input.file
	      Specifies the input file name and path.

	      input.file must be 127 characters or less in length.

	      input.file will be read from the present working directory unless it is fully qualified.

       -V     Print version information and exit (regardless of any other chosen options).

EXAMPLES

	Dump the contents of the fsck service log in <pwd>fscklog.new:

	      xchkdmp

       Dump the contents of the fsck service log in /temp/l9651107.log:

	      xchkdmp -f /temp/l9651107.log

REPORTING BUGS

       If you find a bug in JFS or xchkdmp , please report it via the bug tracking system ("Report Bugs" section) of the JFS project web site:
       http://oss.software.ibm.com/jfs

       Please send as much pertinent information as possible, including any xchkdmp error messages and the complete  output  of  running  fsck.jfs
       with the -v option on the JFS device.

SEE ALSO

       xchklog(8), mkfs.jfs(8), fsck.jfs(8), logdump(8), logredo(8), xpeek(8)

AUTHOR

       Barry Arndt  (barndt@us.ibm.com)

       xchkdmp is maintained by IBM.
       See the JFS project web site for more details:
       http://oss.software.ibm.com/jfs

								 January 11, 2001							xchkdmp(8)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

error piping nohup to /dev/null

Discussion started by: mochi

2. Solaris

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

Discussion started by: frustrated1

3. Solaris

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

Discussion started by: civic2005

4. UNIX for Dummies Questions & Answers

cat /dev/null

Discussion started by: freakydancer