romanpitak / datecalc.ksh

Calculate date from another time

DATECALC

Calculate date from another time.

(c) 2011-2015 Roman Piták [e-mail]

SYNOPSIS

datecalc [OPTIONS] 

OPTIONS

-p +STRING          : set print string
                    : default : +%Y-%m-%d %H:%M:%S
-Y year             : set  Year    to be used as reference
-M month            : set  Month   to be used as reference
-D day              : set  Day     to be used as reference
-h hour             : set  Hour    to be used as reference
-s second           : set  Second  to be used as reference
-m minute           : set  Minute  to be used as reference
-h                  : print this help message
--isLeapYear [year] : true if year is a leap year
-l [month]          : print number of days in a month
--man               : print full manual
-number time_unit   : set negative time offset
+number time_unit   : set positive time offset

EXAMPLES

datecalc -1d        : print yesterday`s date
datecalc -100 seconds -s "+%Y"
                    : what was the year 100 seconds ago?
datecalc -Y 1995 -M 08 -D 24 -h 0 -m 0 -s 0 +3M
                    : print the date 3 months after Win95 release