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How to compare a file by its timestamp and store in a different location whenever timestamp changes?

 
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Old 07-23-2011
How to compare a file by its timestamp and store in a different location whenever timestamp changes?
Hi All,
I am new to unix programming. I am trying for a requirement and the requirement goes like this.....

I have a test folder. Which tracks log files. After certain time, the log file is getting overwritten by another file (randomly as the time interval is not periodic). I need to preserve all the log files in a different folder with the timestamp before it gets overwritten.

Ex:
The log file contents and size varies with time
test/test1.log - 07/22/2011 13:01:11 ; 2 MB
test/test1.log - 07/22/2011 13:27:12 ; 2 MB
test/test1.log - 07/22/2011 14:27:09 ; 1.5 MB

I need to create a archive folder and preserve all these 3 files with their time stamp.

archive/test1.log_20110722130111
archive/test1.log_20110722132712
archive/test1.log_20110722142709


Any help on this is highly appreciated..

-Saravana
 
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LEARN ABOUT OSX

xip

xip(1)							    BSD General Commands Manual 						    xip(1)

NAME

     xip -- Create a signed archive for secure distribution

SYNOPSIS

     xip [options] --sign identity input-file ... output-archive

DESCRIPTION

     The xip tool archives one or more files or directories into a signed XIP file. A XIP file is an analog to zip(1), but allows for a digital
     signature to be applied and verified on the receiving system, before the archive is expanded. When a XIP file is opened (by double-clicking),
     Archive Utility will automatically expand it (but only if the digital signature is intact).

     To create a XIP file, you will need to have a certificate and corresponding private key -- together called an ``identity'' -- in one of your
     accessible keychains. To add a signature, specify the name of the identity using the --sign option. The identity's name is the same as the
     ``Common Name'' of the certificate.

     If you want to search for the identity in a specific keychain, specify the path to the keychain file using the --keychain option. Otherwise,
     the default keychain search path is used.

     xip will embed the signing certificate in the XIP file, as well as any intermediate certificates that are found in the keychain.

     The signature can optionally include a trusted timestamp. This is enabled by default when signing with a Developer ID identity, but it can be
     enabled explicitly using the --timestamp option. A timestamp server must be contacted to embed a trusted timestamp. If you aren't connected
     to the Internet, you can use --timestamp=none to disable timestamps, even for a Developer ID identity.

ARGUMENTS AND OPTIONS

     --sign identity-name
		 The name of the identity to use for signing the archive.

     --keychain keychain-path
		 Specify a specific keychain to search for the signing identity.

     --timestamp
		 Include a trusted timestamp with the signature.

     --timestamp=none
		 Disable trusted timestamp, regardless of identity.

     input-file ...
		   The path to one or more files or directories to be archived.

     output-archive
		   The path to which the signed archive will be written.

Mac OS								September 23, 2011							    Mac OS