Disabling Multiple Invocations of Applications

In certain circumstances, you may possibly want to disable the automatic re-invocation of KAPPA applications to process groups of data files. This can be done by setting the environment variable KAPPA_LOOP_DISABLE to an arbitrary value.²⁷ For instance, in the C-shell:

    % setenv KAPPA_LOOP_DISABLE 1

will cause all NDF and positions list parameters to accept only a single data file, and each application will be run only once. Note, the extra facilities for specifying data files provided by the group expression syntax will not then be available. To re-enable looping, you should undefine KAPPA_LOOP_DISABLE. In C-shell:

    % unsetenv KAPPA_LOOP_DISABLE