 
NAME
r.timestamp  - Modifies a timestamp for a raster map.
Print/add/remove a timestamp for a raster map.
KEYWORDS
raster, 
metadata, 
timestamp, 
time
SYNOPSIS
r.timestamp
r.timestamp --help
r.timestamp map=name  [date=timestamp]   [--help]  [--verbose]  [--quiet]  [--ui] 
Flags:
- --help
- Print usage summary
- --verbose
- Verbose module output
- --quiet
- Quiet module output
- --ui
- Force launching GUI dialog
 
Parameters:
- map=name [required]
- Name of raster map
- date=timestamp
- Datetime, datetime1/datetime2, or 'none' to remove
- Format: '15 jan 1994' (absolute) or '2 years' (relative)
 
r.timestamp has two modes of operation. If no 
date argument is
supplied, then the current timestamp for the raster map is printed. If
a date argument is specified, then the timestamp for the raster map is
set to the specified date(s). See examples below.
Strings containing spaces should be quoted. For specifying a range of
time, the two timestamps should be separated by a forward slash. To
remove the timestamp from a raster map, use 
date=none.
The timestamp values must use the format as described in the 
GRASS
Datetime Library. The source tree for this library should have a
description of the format. For convenience, the formats are reproduced
here:
There are two types of datetime values:
Absolute values specify exact dates and/or times. Relative values
specify a span of time.
The general format for absolute values is:
  day month year [bc] hour:minute:seconds timezone
         day is 1-31
         month is jan,feb,...,dec
         year is 4 digit year
         [bc] if present, indicates dates is BC
         hour is 0-23 (24 hour clock)
         minute is 0-59
         second is 0-59.9999 (fractions of second allowed)
         timezone is +hhmm or -hhmm (eg, -0600)
Some parts can be missing, for example
         1994 [bc]
         Jan 1994 [bc]
         15 jan 1000 [bc]
         15 jan 1994 [bc] 10 [+0000]
         15 jan 1994 [bc] 10:00 [+0100]
         15 jan 1994 [bc] 10:00:23.34 [-0500]
There are two types of relative datetime values, year-month and
day-second. The formats are:
         [-] # years # months
         [-] # days # hours # minutes # seconds
The words years, months, days, hours, minutes, seconds are literal
words, and the # are the numeric values. Examples:
         2 years
         5 months
         2 years 5 months
         100 days
         15 hours 25 minutes 35.34 seconds
         100 days 25 minutes
         1000 hours 35.34 seconds
The following are 
illegal because it mixes year-month and
day-second (because the number of days in a month or in a year vary):
         3 months 15 days
         3 years 10 days
Prints the timestamp for the "soils" raster map. If there is no
timestamp for "soils", nothing is printed. If there is a timestamp,
one or two time strings are printed, depending on if the timestamp for
the map consists of a single date or two dates (ie start and end
dates).
Sets the timestamp for "soils" to the single date "15 sep 1987".
r.timestamp map=soils date='15 sep 1987'
Sets the timestamp for "soils" to have the start date "15 sep 1987"
and the end date "20 feb 1988".
r.timestamp map=soils date='15 sep 1987/20 feb 1988'
Sets the timestamp for "soils" to have the start date "18 feb 2005
10:30:00" and the end date "20 jul 2007 20:30:00".
r.timestamp map=soils date='18 feb 2005 10:30:00/20 jul 2007 20:30:00'
Removes the timestamp for the "soils" raster map.
r.timestamp map=soils date=none
Spaces in the timestamp value are required.
  r.info,
  r3.timestamp,
  v.timestamp
Michael Shapiro, U.S.Army Construction Engineering Research Laboratory
SOURCE CODE
  Available at:
  r.timestamp source code
  (history)
  Latest change: Tuesday Dec 17 20:17:20 2024 in commit: d962e90c026708a4815ea2b9f46c0e84c17de22d
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GRASS Development Team,
GRASS GIS 8.4.1 Reference Manual