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Top Forums UNIX for Dummies Questions & Answers How to compare a file by its timestamp and store in a different location whenever timestamp changes? Post 302541320 by mailsara on Saturday 23rd of July 2011 07:42:20 PM
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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bup-restore(1)						      General Commands Manual						    bup-restore(1)

NAME
bup-restore - extract files from a backup set SYNOPSIS
bup restore [--outdir=outdir] [-v] [-q] DESCRIPTION
bup restore extracts files from a backup set (created with bup-save(1)) to the local filesystem. The specified paths are of the form /branch/revision/path/to/file. The components of the path are as follows: branch the name of the backup set to restore from; this corresponds to the --name (-n) option to bup save. revision the revision of the backup set to restore. The revision latest is always the most recent backup on the given branch. You can dis- cover other revisions using bup ls /branch. /path/to/file the original absolute filesystem path to the file you want to restore. For example, /etc/passwd. Note: if the /path/to/file is a directory, bup restore will restore that directory as well as recursively restoring all its contents. If /path/to/file is a directory ending in a slash (ie. /path/to/dir/), bup restore will restore the children of that directory directly to the current directory (or the --outdir). If the directory does not end in a slash, the children will be restored to a subdirectory of the current directory. See the EXAMPLES section to see how this works. OPTIONS
-C, --outdir=outdir create and change to directory outdir before extracting the files. -v, --verbose increase log output. Given once, prints every directory as it is restored; given twice, prints every file and directory. -q, --quiet don't show the progress meter. Normally, is stderr is a tty, a progress display is printed that shows the total number of files restored. EXAMPLE
Create a simple test backup set: $ bup index -u /etc $ bup save -n mybackup /etc/passwd /etc/profile Restore just one file: $ bup restore /mybackup/latest/etc/passwd Restoring: 1, done. $ ls -l passwd -rw-r--r-- 1 apenwarr apenwarr 1478 2010-09-08 03:06 passwd Restore the whole directory (no trailing slash): $ bup restore -C test1 /mybackup/latest/etc Restoring: 3, done. $ find test1 test1 test1/etc test1/etc/passwd test1/etc/profile Restore the whole directory (trailing slash): $ bup restore -C test2 /mybackup/latest/etc/ Restoring: 2, done. $ find test2 test2 test2/passwd test2/profile SEE ALSO
bup-save(1), bup-ftp(1), bup-fuse(1), bup-web(1) BUP
Part of the bup(1) suite. AUTHORS
Avery Pennarun <apenwarr@gmail.com>. Bup unknown- bup-restore(1)
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