isogmt (1) - Linux Manuals
isogmt: Run GMT command or script in isolation mode
NAMEisogmt - Run GMT command or script in isolation mode
isogmt runs a single GMT command or shell script in isolation mode. This means that the files gmt.history and gmt.conf will be read from the usual locations (current directory, ~/.gmt, or home directory), but changes will only be written in a temporary directory, which will be removed after execution. The name of the temporary directory will be available to the command or script as the environment variable GMT_TMPDIR.
Run the shell script script.gmt in isolation mode isogmt sh script.gmt
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