How to tar a files that bigger than 2 gig in AIX 5.2? Post: 302076548

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Operating Systems AIX How to tar a files that bigger than 2 gig in AIX 5.2? Post 302076548 by truma1 on Wednesday 14th of June 2006 05:54:39 AM

06-14-2006

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---------------- Export Section

# Create new Named pipes.

mknod -p /dev/split_pipe

mknod -p /dev/compress_pipe # You can use the existing named pipe
# itself, instead of creating new.

======================================================================
Create a shell script under a file, named Split_export.sh
======================================================================

# -b1000m indicates to split command to split the input file into every 1000 MB size.

# As it splits, the split command will suffix aa, ab, ac, ad ... upto zz to the file name specified.

# The export file name is expfile.

nohup split -b1000m < /dev/split_pipe > /DumpDir/expfile &

nohup compress < /dev/compress_pipe > /dev/split_pipe &

exp username/password full=y file=/dev/compress_pipe and other parameters for export.

=======================================================================
After saving the above three commands in split_export.sh, execute the following.
=======================================================================

chmod a+x split_export.sh

nohup split_export.sh > /tmp/split_export.log 1>&2 &

=======================================================================
After a few minutes you should see files in the export dump directory.
=======================================================================
------------------ IMPORT Section

======================================================================
Create a shell script with the following command under the file name split_import.sh.

After creating provide execution permission to this script as follows:
======================================================================

Chmod a+x split_import.sh

# The import script assumes in this example that the above export script created 2 split files

# called expfileaa and expfileab. The order of the file for the cat command is very important.

nohup cat /dumpdir/expfileaa /dumpdir/expfileab > /dev/split_pipe &

# sleep 3 seconds

Sleep 3

nohup uncompress < /dev/split_pipe > /dev/compress_pipe &

#Sleep at this point is very important as some time is needed to uncompress the file and send it to the pipe.

sleep 60

imp username/password file=/dev/compress_pipe and other parameters for export.

nohup split_import.sh > /tmp/split_import.log 1>&2 &

=======================================================================
Wait for the import to finish.
=======================================================================

truma1

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LEARN ABOUT FREEBSD

nohup

NOHUP(1)						    BSD General Commands Manual 						  NOHUP(1)

NAME

     nohup -- invoke a utility immune to hangups

SYNOPSIS

     nohup [--] utility [arguments]

DESCRIPTION

     The nohup utility invokes utility with its arguments and at this time sets the signal SIGHUP to be ignored.  If the standard output is a ter-
     minal, the standard output is appended to the file nohup.out in the current directory.  If standard error is a terminal, it is directed to
     the same place as the standard output.

     Some shells may provide a builtin nohup command which is similar or identical to this utility.  Consult the builtin(1) manual page.

ENVIRONMENT

     The following variables are utilized by nohup:

     HOME  If the output file nohup.out cannot be created in the current directory, the nohup utility uses the directory named by HOME to create
	   the file.

     PATH  Used to locate the requested utility if the name contains no '/' characters.

EXIT STATUS

     The nohup utility exits with one of the following values:

     126     The utility was found, but could not be invoked.

     127     The utility could not be found or an error occurred in nohup.

     Otherwise, the exit status of nohup will be that of utility.

SEE ALSO

     builtin(1), csh(1), signal(3)

STANDARDS

     The nohup utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.

BUGS

     Two or more instances of nohup can append to the same file, which makes for a confusing output.

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								   July 19, 2001							       BSD