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Full Discussion: Changing File Time Stamp (Bash Script)
Top Forums Shell Programming and Scripting Changing File Time Stamp (Bash Script) Post 302384779 by chj on Wednesday 6th of January 2010 09:37:48 AM
Old 01-06-2010
Changing File Time Stamp (Bash Script) [SOLVED]
I need some help recovering from a "slight" screwup. We just moved 3 TB of data from one RAID Array to another. Low lever archive files. This was done with a regular cp (for some reason) and now we have lost all the timestamps on the files, and we urgently need to get the timestamps back on these files.

We are running Ubuntu 9.10 Server and we have mounted the following

1. /mnt/old-raid ##Old raid from the old server
2. /mnt/new-raid ##New raid on the server

I know we can read out the timestamp on the old server using the command stat -c '%Y' <<filname>>

I know we can change the timestamp of the file, using the command touch -d '<<date>>'

To get from the stat -c date to the input date in touch we need to use date -d @<<timestamp>> +'%d %b %Y %R'

So my question is, how can I create a loop that will list all files in a folder, get their timestamp and update the old timestamp with the new?

Clear as mud?
Last edited by chj; 01-06-2010 at 01:57 PM..
 

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LEARN ABOUT OSX

shar

SHAR(1) 						    BSD General Commands Manual 						   SHAR(1)

NAME

     shar -- create a shell archive of files

SYNOPSIS

     shar file ...

DESCRIPTION

     shar writes an sh(1) shell script to the standard output which will recreate the file hierarchy specified by the command line operands.
     Directories will be recreated and must be specified before the files they contain (the find(1) utility does this correctly).

     shar is normally used for distributing files by ftp(1) or mail(1).

SEE ALSO

     compress(1), mail(1), tar(1), uuencode(1)

BUGS

     shar makes no provisions for special types of files or files containing magic characters.

EXAMPLES

     To create a shell archive of the program ls(1) and mail it to Rick:

	   cd ls
	   shar `find . -print` |  mail -s "ls source" rick

     To recreate the program directory:

	   mkdir ls
	   cd ls
	   ...
	   <delete header lines and examine mailed archive>
	   ...
	   sh archive

HISTORY

     The shar command appears in 4.4BSD.

SECURITY CONSIDERATIONS

     It is easy to insert trojan horses into shar files.  It is strongly recommended that all shell archive files be examined before running them
     through sh(1).  Archives produced using this implementation of shar may be easily examined with the command:

	   egrep -v '^[X#]' shar.file

4.4BSD								   June 6, 1993 							    4.4BSD
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