
checkqso    Search call signs from ADIF-log file, for example after receiving 
            QSL cards type 

            checkqso CALL1 CALL2... > qslYYYYMMDD.txt

            This file is then edited to select the QSOs corresponding to the
            dates and times on the cards. The file can then be converted to
            ADIF and merged with the main log file.
