Equalent of Linux "stat" in AIX Post: 302700175

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Operating Systems AIX Equalent of Linux "stat" in AIX Post 302700175 by bakunin on Thursday 13th of September 2012 05:16:49 AM

09-13-2012

Registered User

Quote:

Originally Posted by expert

i tried "istat" but its not giving the epoch time

"istat" is displaying the mtime, atime and ctime down to the seconds.

You can easily calculate the epoch time from a given date: POSIX.1 defines it as the seconds passed since Jan 1st, 1970, 0:00:00. The following additional rules apply:

leap seconds are not taken into account, each day is exactly 86400 seconds
leap years are: all years divisible by 4, save for the years divisible by 100 but not by 400
notice that non-synchronous NTP time is NOT POSIX-compatible

Many systems in fact are not POSIX-compatible in this regard, because they use Mills-algorithm-based NTP Stratum-2-servers.

I hope this helps.

bakunin

bakunin

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datetime::leapsecond

DateTime::LeapSecond(3pm)				User Contributed Perl Documentation				 DateTime::LeapSecond(3pm)

NAME

       DateTime::LeapSecond - leap seconds table and utilities

VERSION

       version 0.75

SYNOPSIS

	 use DateTime;
	 use DateTime::LeapSecond;

	 print "Leap seconds between years 1990 and 2000 are ";
	 print DateTime::Leapsecond::leap_seconds( $utc_rd_2000 ) -
	       DateTime::Leapsecond::leap_seconds( $utc_rd_1990 );

DESCRIPTION

       This module is used to calculate leap seconds for a given Rata Die day. It is used when DateTime.pm cannot compile the XS version of this
       code.

       This library is known to be accurate for dates until December 2009.

       There are no leap seconds before 1972, because that's the year this system was implemented.

       o   leap_seconds( $rd )

	   Returns the number of accumulated leap seconds for a given day, in the range 0 .. 22.

       o   extra_seconds( $rd )

	   Returns the number of leap seconds for a given day, in the range -2 .. 2.

       o   day_length( $rd )

	   Returns the number of seconds for a given day, in the range 86398 .. 86402.

SEE ALSO

       <http://hpiers.obspm.fr/eop-pc/earthor/utc/leapsecond.html>

       http://datetime.perl.org

AUTHOR

       Dave Rolsky <autarch@urth.org>

COPYRIGHT AND LICENSE

       This software is Copyright (c) 2012 by Dave Rolsky.

       This is free software, licensed under:

	 The Artistic License 2.0 (GPL Compatible)

perl v5.14.2							    2012-06-11						 DateTime::LeapSecond(3pm)