GDAL - assign a projection to a tif

per file:

gdalwarp -t_srs "EPSG:4326" input.tif output.tif

and a batch:

@echo off
mkdir processed
for %%F in (*.tif) do (
	echo processing %%F
	gdalwarp -t_srs "EPSG:4326" %%F processed\%%F
)
pause

Symbolic links on windows

Sometimes it is useful to have a symbolic link - a link that behaves like it is a resource it links to (more info on symbolic links here). To create a symbolic link in windows use cmd and mklink command - its help actually says all that is needed ;)

For example:

mklink /H d:\link.txt d:\target.txt
will create a hardlink named link.txt on a drive d pointing to d:\target.txt; created link will appear as it was a file, not a link.