A number of things can be accomplished with it. This documentation
excerpt indicates the capabilities:
Quick summary of the parameters/tools:
-infile file that is used for input, where applicable
-outfile file that is used for processed output, where
applicable
-record_type whatever you're doing, look only at the
specified record type
-manual_edit process infile to enable editing via any text
editor
-finish_manual_edit convert manually edited file back to MARC format
-create_filters selectively process input based on
field/subfield/indicators
-filter_file switch from standard to specified filter file,
or turn filter off
-create_actions for leader, any field/subfields:
add|delete|copy|relabel|replace
-delete_action remove an action from standard actions file
-use_action apply the specified action
-update005 optionally update 005 when an action changes a
record
-action_file switch from standard to specified action file
-no_actions absolutely do not do anything with any actions
-create_ctl_file store parameters for easy reuse of a common
application
-use_ctl_file specifying this parameter invokes the stored
parameters
-output_edits_only output only those records changed by an action
-dryrun do an action run-through without changing anything
-progress real-time progress indicator suitable for
larger files
-segregate split infile into separate files of bibs,
holdings, authorities
-dupe_finder find field duplication within a record
-get_field prints all occurrences of the specified field
to STDOUT
-field_sifter output records containing (or not) the
specified field
It is available at: https://royzimmer.library.wmich.edu/marc_index.html
As it is a Perl program it does require Perl on your system and that's
all it needs.
