/dev/Null error Post: 302584040

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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. 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:...

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. 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...

6. 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

7. 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:...

8. 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:...

9. UNIX for Dummies Questions & Answers

Eliminate error message (/dev/null)?

I am trying to eliminate an error message from a script. This is the error message: find: stat() error /usr/openv/netbackup/db/images/KUMAX: No such file or directory if ]; then runthiscommand=`su nxadm -c "ssh -t $new3 exec /bin/sh -s">/tmp/filew3 2>/tmp/error.txt<<EOF ...

10. UNIX for Dummies Questions & Answers

Redirect Standard Error to /dev/null is not working.

Hello. When I run a .ksh that contains the command below, and there is no file available in the source location the "FILE_NAME_*.CSV not found" error is still being displayed. FILEN=$(ssh ${SOURCE_SERV} "cd ${SOURCE_LOCATION} ;ls ${FILES}") 2> /dev/null. This is interfering with the rest...

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ptrepack

PTREPACK(1)						      General Commands Manual						       PTREPACK(1)

NAME

       ptrepack - Copy any PyTables Leaf, Group or complete subtree into another file.

SYNOPSIS

       ptrepack  -h  -v  -o -R start,stop,step --non-recursive --dest-title=title --dont-copyuser-attrs --overwrite-nodes --complevel=(0-9) --com-
       plib=lib --shuffle=(0|1) --fletcher32=(0|1) --keep-source-filters  --upgrade-flavors  --dont-regenerate-old-indexes  sourcefile:sourcegroup
       destfile:destgroup

DESCRIPTION

       Copy any Leaf, Group or complete subtree from a PyTables file into another file.

OPTIONS

       A summary of options is included below.

       -h     Prints a help text.

       -v     Show more information.

       -o     Overwite destination file.

       -R RANGE
	      Select a RANGE of rows in the form start,stop,step during the copy of all the leaves.

       --non-recursive
	      Do not do a recursive copy. Default is to do it.

       --dest-title=title
	      Title for the new file (if not specified, the source is copied).

       --dont-copy-userattrs
	      Do not copy the user attrs (default is to do it).

       --overwrite-nodes
	      Overwrite destination nodes if they exist. Default is not to overwrite them.

       --complevel=(0-9)
	      Set a compression level (0 for no compression, which is the default).

       --complib=lib
	      Set the compression library to be used during the copy. lib can be set to "zlib", "lzo", "ucl" or "bzip2". Defaults to "zlib".

       --shuffle=(0|1)
	      Activate or not the shuffling filter (default is active if complevel>0).

       --fletcher32=(0|1)
	      Whether to activate or not the fletcher32 filter (not active by default).

       --keep-source-filters
	      Use  the original filters in source files. The default is not doing that if any of --complevel, --complib, --shuffle or --fletcher32
	      option is specified.

       --upgrade-flavors
	      When repacking PyTables 1.x files, the flavor of leaves will be unset. With this, such a leaves will be serialized as  objects  with
	      the internal flavor ("numpy" for 2.x series).

       --dont-regenerate-old-indexes
	      Disable regenerating old indexes. The default is to regenerate old indexes as they are found.

SEE ALSO

       ptdump(1).
       These utilities are documented fully by PyTables user's manual.

AUTHOR

       This manual page was written by Francesc Altet <faltet@carabos.com>.

								   July 7, 2007 						       PTREPACK(1)

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. Shell Programming and Scripting

error piping nohup to /dev/null

Discussion started by: mochi

4. Solaris

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

Discussion started by: civic2005