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What is the proper procedure for issuing ARC level commands while in a
subsystem (for example ARCPLOT)?
You can access ARC level commands from ARCPLOT by putting the keyword ARC in front of the ARC command, like this:
Arcplot: arc build landuse poly
You can access ARC level commands from ARCEDIT by accessing ARCPLOT using the keyword APC, then prefixing the ARC command with the keyword ARC. For example:
Arcedit: apc arc describe landuse
You can access UNIX commands from within ARC by using the &SYSTEM directive. For example:
Arc: &sys ls
You can access Arc commands from the UNIX prompt by doing this:
UNIX% arc clean cov1 outcov
ARC will process just this command and return to the UNIX prompt.
To run an AML using this method, put quotes around the &RUN commmand. In Unix, use single quotes. In DOS, use double quotes.
UNIX% arc '&r process.aml'
DOS:> arc "&r process.aml"