I find that printf's `%T' format can recognize time strings like "2 days
ago" or "10 hours later" which is really cool. But then I find that 1000 is
a magic number for %T. See following examples:
$ echo ${.sh.version}
Version jM 93u 2011-02-08
$ printf '%T\n' '1000 days ago'
Wed Dec 28 10:00:00 CST 2011
$ printf '%T\n' '1000 minutes ago'
Thu Dec 29 09:59:00 CST 2011
$ printf '%T\n' '1000 seconds ago'
ksh: printf: warning: invalid argument of type T <-- ???
Thu Dec 29 10:00:00 CST 2011
$
$ printf '%T\n' '201201010101.01 999 days ago'
Tue Apr 7 01:01:01 CST 2009
$ printf '%T\n' '201201010101.01 1000 days ago'
ksh: printf: warning: invalid argument of type T <-- ???
Sun Jan 1 01:01:01 CST 2012
$
I'm confused. Is there a specification about the exact time strings
supported by ksh?
-Clark
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