Cataloging a directory using RMAN

RMAN> catalog start with '/SHARED/backup1/' noprompt
2> ;

searching for all files that match the pattern /SHARED/backup1/

List of Files Unknown to the Database
=====================================
File Name: /SHARED/backup1/system.256.847354793
File Name: /SHARED/backup1/5ep8avdp_1_1_custom_copy
File Name: /SHARED/backup1/system_custom_copy
cataloging files...
cataloging done

List of Cataloged Files
=======================
File Name: /SHARED/backup1/system.256.847354793
File Name: /SHARED/backup1/5ep8avdp_1_1_custom_copy
File Name: /SHARED/backup1/system_custom_copy