keyword_exists (version 2.0)

You can also look at:

The list of all major processing steps
The actual script for this routine.

This utility checks if a given FITS keyword value is present in a file. "yes" is printed to stdout if the keyword exists, "no" is printed if it does not.

FTOOLS called:

fkeypar

Utility scripts called:

ftool_test
read_parfile
setup_parfile