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BACKUP(8) System Manager's Manual BACKUP(8) NAME backup - backup client administration SYNOPSIS /usr/lib/backup/sel /usr/lib/backup/fcheck maxsize maxdays files ... /usr/lib/backup/act [ stat ] DESCRIPTION These programs select and back up files to the incremental file backup system, backup(1). Sel prints on the standard output a list of filenames that might need to be backed up. The initial version picks out files that have been changed in the past few days, skipping huge files and eliding boring names like core. Sel is a shell script; the local administrator is ex- pected to customize it. Fcheck is a fast, specialized file scanning program, used by sel. It examines each of the files, descending into directories, and prints the name of each file that has been changed in the last maxdays days and is smaller than maxsize kilobytes. Symbolic links are followed when pre- sented as arguments, examined but not followed otherwise. Act reads a list of filenames from the standard input. It searches the backup database backup(5) for the current version of each file, and backs up files that aren't registered. By default, act sends errors by mail(1) to user backup. If the stat argument is non-empty, errors and additional comforting chatter are printed on the standard output instead. One way to request automatic backups is to run /usr/lib/backup/sel | /usr/lib/backup/act regularly from cron(8). Particular files may be backed up by hand at any time by running act with a list of filenames. There are no special permissions involved; any user may run act. SEE ALSO backup(1), backup(5) A. Hume, `The File Motel: An Owner's Manual', this manual, Volume 2 BACKUP(8)