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How to run grass batch job in shell?
Just define the environmental variable GRASS_BATCH_JOB with the shell script file containing GRASS (or whatever) commands, preferably with full path. Then launch GRASS and it will be executed. It is best to launch GRASS in -text mode and to provide gisdbase/location/mapset as parameters.
How to execute GRASS module in GRASS GIS?
Execute GRASS module or script. The provided executable will be executed in a GRASS GIS non-interactive session. Run using a temporary location which is created based on the given coordinate reference system and deleted at the end of the execution (use with the –exec flag). The active mapset will be the PERMANENT mapset.
How to run grass command from outside grass?
You have to set a couple of variables to enable GRASS command to run from outside GRASS: Define a GRASS session with the last used GISDBASE, LOCATION_NAME, and MAPSET Define a GRASS session with a different GISDBASE, LOCATION_NAME, and/or MAPSET
How to run grass script outside of session?
You can run GRASS scripts non-interactively from outside of a GRASS session with the GRASS_BATCH_JOB environment variable. When GRASS is started with this environment variable set it will automatically run the contents of the script given in the variable, then close the GRASS session when complete.
What does the grass78 command do in shell?
The grass78 command starts GRASS in the given mapset, executes the contents of the job file and leaves GRASS. Since the normal startup/closure is used, all internal tmp files are properly removed. Note: The $HOME variable (or the ~ shortcut) cannot be used in the batch job itself since the variables are not available here.
How to call GRASS GIS 7 functionality from R?
To call GRASS GIS 7 functionality from R, start R and use the initGRASS() function to define the GRASS settings. If GRASS GIS was installed through OSGeo4W, first start the OSGeo4W Shell. Note that it may start in C: or a directory where the user does not have writing permission.
How to run shell scripting-grass-wiki?
The first line indicates the shell interpreter to be used, here “sh” which is always in the /bin/ directory. Silly example, run within a GRASS session: Save this in a file “myscript.sh” and run it within GRASS GIS from the command line: It should print the current region settings, finish, and return to the command line.
How to start grass from the command line?
Run “screen” in the terminal. You will reach again the command line but now in screen mode. Now start GRASS. Enjoy. Along with the ” nohup ” (no hang-up) command you can login to your machine, launch the job and leave the machine again.