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Top Forums Shell Programming and Scripting Reason for no directory creation date Post 303029135 by jlliagre on Tuesday 22nd of January 2019 07:55:53 AM
Old 01-22-2019
I wouldn't write most BSD, Linux and UNIX systems do not save a file creation time.
  • FreeBSD traditional file system is UFS2 and the trend is to switch to ZFS. Both of these file systems store the file creation time.
  • Linux default file system on many distributions is ext4 which stores file creation time too. Some alternatives like btrfs and ZFS do also store it.
  • OS X main file system is HFS Plus and it is transitioning to APFS, both store the creation time.
  • On the Unix side, Solaris, AIX, and HP-UX respectively default to ZFS, JFS, and VXFS. All three do store the creation time.

An exception is OpenBSD with FFS2.

Given the unfortunate lack of standard for this feature, the ways to retrieve that piece of information will vary depending on the OS. That might be ls, the non standard stat command, or something else.

Last edited by jlliagre; 01-22-2019 at 06:40 PM..
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zdb(1M) 						  System Administration Commands						   zdb(1M)

NAME
zdb - ZFS debugger SYNOPSIS
zdb pool DESCRIPTION
The zdb command is used by support engineers to diagnose failures and gather statistics. Since the ZFS file system is always consistent on disk and is self-repairing, zdb should only be run under the direction by a support engineer. If no arguments are specified, zdb, performs basic consistency checks on the pool and associated datasets, and report any problems detected. Any options supported by this command are internal to Sun and subject to change at any time. EXIT STATUS
The following exit values are returned: 0 The pool is consistent. 1 An error was detected. 2 Invalid command line options were specified. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWzfsu | +-----------------------------+-----------------------------+ |Interface Stability |Unstable | +-----------------------------+-----------------------------+ SEE ALSO
zfs(1M), zpool(1M), attributes(5) SunOS 5.11 31 Oct 2005 zdb(1M)
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