t.unregister(1)

📦
version 8.4.2 · 8 versions
, in fedora 44

💅 t.unregister — the GRASS GIS girlies' guide (section 1 of the manual, iykyk)

okay so bestie, you know how your temporal database is basically a whole closet and sometimes a map ends up hanging in the wrong section? t.unregister is the module that takes it off the rack. It's from the GRASS GIS User's Manual, and it's giving cleanup era ✨

🎀 NAME 🎀

t.unregister — unregisters raster, vector and raster3d maps from the temporal database or a specific space time dataset. literally it's the "girl, you're not on this list anymore" module 💅

🔑 KEYWORDS 🔑

temporal, map management, unregister, time

✨ SYNOPSIS ✨

t.unregister
t.unregister --help
t.unregister  [input=name]   [file=name]   [type=name]
[maps=name[,name,...]]   [--help]  [--verbose]  [--quiet]  [--ui]

🫶 Flags:

  • --help — print usage summary. your lil cheat sheet 🥰
  • --verbose — verbose module output. it tells you everything, no cap
  • --quiet — quiet module output. shhh 🤫
  • --ui — force launching GUI dialog. for the visual girlies 🎀

🌸 Parameters:

  • input=name — name of the input space time dataset
  • file=name — input file with map names, one per line
  • type=name — type of the input map. options: raster, vector, raster_3d. default: raster
  • maps=name[,name,...] — name(s) of existing raster, vector or raster3d map(s) to unregister

💖 DESCRIPTION 💖

The t.unregister module is designed to unregister raster, 3D raster and vector map layers from space time datasets and the temporal database. periodt. ✨

A map layer that should be unregistered from the temporal database can be specified as a list of comma separated map names, or by using a text file that contains one map layer name per line. By default the map type that should be unregistered is set to raster. The option type must be used to specify 3D raster or vector map layer types. no shortcuts, bestie, you gotta say what it is 🦋

📄 INPUT FILE FORMAT 📄

Specification of map names:

a1
a2
a3
a4
a5
a6

⚠️ NOTE

In case the input option is used to specify a space time dataset, the maps are only unregistered from the space time dataset, but not from the temporal database. The reason is that maps can be registered in multiple space time datasets and there is a need to unregister them from a specific STDS without affecting other STDS.

like, the map is still in the database's group chat, it just left this one STDS. iconic but careful 💀

🌈 EXAMPLE 🌈

In this example a precipitation map it is registered into temperature dataset, so the wrong map will be unregister.

t.register -i type=raster input=tempmean_monthly@climate_2009_2012 \
    maps=2012_01_precip \
    start="2013-01-01" increment="1 month"
# We unregister raster map 2012_01_precip from a space time dataset,
# the raster maps are still present in the temporal database
t.unregister type=raster input=tempmean_monthly@climate_2009_2012 maps=2012_01_precip
# We unregister raster map 2012_01_precip from the temporal database, hence
# the time stamps are removed
t.unregister type=raster maps=2012_01_precip

see how the first one is a soft launch and the second one is a full block? that's the difference, bestie 👑

👀 SEE ALSO 👀

t.create, t.info

👑 AUTHOR 👑

Sören Gebbert, Thünen Institute of Climate-Smart Agriculture — thank you for your service 🫡💖

💻 SOURCE CODE 💻

Available at: t.unregister source code (history)

Accessed: Saturday Jan 17 05:41:53 2026

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© 2003-2025 GRASS Development Team, GRASS GIS 8.4.2 Reference Manual

okay that's the whole page, mwah 💋 this was GRASS 8.4.2, t.unregister(1), and the tea was accessed Saturday Jan 17 05:41:53 2026, brought to you by the GRASS Development Team © 2003-2025 — go unregister something, slay 🦋✨

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