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Top Forums Shell Programming and Scripting convert Julian date to calender date Post 302116654 by jim mcnamara on Monday 7th of May 2007 11:10:19 AM
Old 05-07-2007
try:
Code:
#!/bin/ksh

date_from_yday()
{
	perl -e '
	  use Time::Local;

      $yr = $ARGV[0] - 1900;
      $yday = $ARGV[1];
	  $mytime = timelocal(1,0,0,1,0,$yr);
	  $mytime += ( 86400 * $yday );

      ($sec,$min,$hour,$day,$mon,$yr,$wday,$yday,$whocares) = 
            localtime($mytime);
      $yr += 1900;
      printf("%02d/%02d/%d\n", $day, $mon, $yr);

	' $2  $1
}

date_from_yday 75  2007

 

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Time::localtime(3pm)					 Perl Programmers Reference Guide				      Time::localtime(3pm)

NAME
Time::localtime - by-name interface to Perl's built-in localtime() function SYNOPSIS
use Time::localtime; printf "Year is %d ", localtime->year() + 1900; $now = ctime(); use Time::localtime; use File::stat; $date_string = ctime(stat($file)->mtime); DESCRIPTION
This module's default exports override the core localtime() function, replacing it with a version that returns "Time::tm" objects. This object has methods that return the similarly named structure field name from the C's tm structure from time.h; namely sec, min, hour, mday, mon, year, wday, yday, and isdst. You may also import all the structure fields directly into your namespace as regular variables using the :FIELDS import tag. (Note that this still overrides your core functions.) Access these fields as variables named with a preceding "tm_" in front their method names. Thus, "$tm_obj->mday()" corresponds to $tm_mday if you import the fields. The ctime() function provides a way of getting at the scalar sense of the original CORE::localtime() function. To access this functionality without the core overrides, pass the "use" an empty import list, and then access function functions with their full qualified names. On the other hand, the built-ins are still available via the "CORE::" pseudo-package. NOTE
While this class is currently implemented using the Class::Struct module to build a struct-like class, you shouldn't rely upon this. AUTHOR
Tom Christiansen perl v5.16.3 2013-02-26 Time::localtime(3pm)
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