iYesterday I discovered a nice feature of ksh93: It has		error.host	1
isupport for date manipulation with printf (ksh's builtin).		error.host	1
i		error.host	1
iSee this post:		error.host	1
ihttp://blog.fpmurphy.com/2008/11/korn-shell-93-secrets-1.html		error.host	1
i		error.host	1
iExamples (from the page above):		error.host	1
i		error.host	1
i$ printf "%Tn" "2:00pm yesterday"		error.host	1
iFri Mar 21 14:00:00 EST 2008		error.host	1
i		error.host	1
iprintf  "%(%a)Tn"  "final day Feb 2008"		error.host	1
iFri		error.host	1
i		error.host	1
i$ printf  "%(%D)Tn" "3rd wednesday may 2008"		error.host	1
i05/21/08		error.host	1
i		error.host	1
i$ printf  "%(%D)Tn" "4 weeks ago"		error.host	1
i02/18/08		error.host	1
i		error.host	1
iIt also understands crontab format:		error.host	1
i$ printf "%Tn" "0 0 1,15 * 1"		error.host	1
iMon Sep 1 00:00:00 EDT 2008		error.host	1
i		error.host	1
iAccording to Glenn Fowler[1] it's better to write the dates		error.host	1
ilike this:		error.host	1
i		error.host	1
i$ printf "%(%K)Tn" "Sept 23 2009 noon"		error.host	1
i2009-09-23+12:00:00		error.host	1
i		error.host	1
i$ printf "%(%K)Tn" "Sept 23 2009 noon 90 days"		error.host	1
i2009-12-22+12:00:00		error.host	1
i		error.host	1
i$ printf "%(%K)Tn" "Sept 23 2009 noon 90 days hence"		error.host	1
i2009-12-22+12:00:00		error.host	1
i		error.host	1
i$ printf "%(%K)Tn" "Sept 23 2009 noon 90 days ago"		error.host	1
i2009-06-25+12:00:00		error.host	1
i		error.host	1
iThat is, with the "reference date first" and the modifiers.		error.host	1
i		error.host	1
i--		error.host	1
i		error.host	1
i[1]		error.host	1
ihttp://www.mail-archive.com/ast-users@research.att.com/msg00680.html		error.host	1
i 		error.host	1
7Post a comment	/users/chr/log/comment.cgi?ksh93-printf-date.txt	sdf.lonestar.org	70  
0Raw text	/users/chr/log/ksh93-printf-date.txt	sdf.lonestar.org	70