more info
# set directory where saga_cmd.exe can be found
>PATH=%PATH%;C:\Data\ws_saga\saga_207
# set directory where modules can be found
>SET SAGA_MLB=C:\Data\ws_saga\saga_207\modules
# move to working directory
>cd /d C:\Data\ws_saga
# check the available module libraries
saga_cmd
# see help for Topographic Wetness Index (in ta_hydrology)
## find which module to be used
>saga_cmd ta_hydrology
>saga_cmd ta_hydrology 20
