11-21-2009
Quote:
Originally Posted by
Paulb
I am trying to rename files based on the created/born date of the file.
The short answer is you can't reliably.
The large majority of file systems do not store file creation dates so there is no way to know when a file was created unless that information is included in the file itself (ex: exif photos). The few file systems I know actually storing the file creation time are BSD/UFS2/st_birthtime, Solaris/ZFS/crtime, Mac OS/HSF+/btime and Linux/Ext4/crtime.
With the other ones, the only timestamps recorded in a file metadata are the last modification and the last access time.
However, if the files you are processing are never modified after their initial creation, the last modification should be pretty close to the creation time (depending on the time spent to write the file), which is what the scripts suggested are doing.
Last edited by jlliagre; 11-21-2009 at 09:34 PM..
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LEARN ABOUT OPENSOLARIS
rename
rename(1T) Tcl Built-In Commands rename(1T)
__________________________________________________________________________________________________________________________________________________
NAME
rename - Rename or delete a command
SYNOPSIS
rename oldName newName
_________________________________________________________________
DESCRIPTION
Rename the command that used to be called oldName so that it is now called newName. If newName is an empty string then oldName is deleted.
oldName and newName may include namespace qualifiers (names of containing namespaces). If a command is renamed into a different namespace,
future invocations of it will execute in the new namespace. The rename command returns an empty string as result.
EXAMPLE
The rename command can be used to wrap the standard Tcl commands with your own monitoring machinery. For example, you might wish to count
how often the source command is called:
rename ::source ::theRealSource
set sourceCount 0
proc ::source args {
global sourceCount
puts "called source for the [incr sourceCount]'th time"
uplevel 1 ::theRealSource $args
}
SEE ALSO
namespace(1T), proc(1T)
KEYWORDS
command, delete, namespace, rename
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl rename(1T)