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2.1 General Options

The general options are not specific to any particular file and apply to the entire current run of the program. They are listed below.

-R
--check-all-reference
--no-check-all-reference

For each data record, check for a match with each of the reference files. This option is set by default. When turned off with ‘--no-check-all-reference’, processing of that data file record will be stopped as soon as a required match is not fulfilled. This is a shortcut for speed, but it will change the meaning of any flags or counters set in reference-file-based input.

-f
--flag

In any output based on a reference file, print a flag with the value ‘1’ if the record was matched by a data record or ‘0’ otherwise.

-n
--count

In any output based on a reference file, print a new field which is a count of the number of data records that matched the current reference record.

-z number
--counter-size=number

If counters or sums of data fields are being written into reference-based output, make them number bytes long.

--statistics
--no-statistics

At the end of the processing, write to stderr counts of the number of records read and matched from each file processed. The option is enabled by default. When turned off with ‘--no-statistics’ print no statistics.

--verbose

Write all the information that is possible about the processing to stderr. This includes a summary of the options that have been set and running counters of the number of records processed.


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