BACKUP(1M)           INTERACTIVE UNIX System           BACKUP(1M)



          NAME
               backup - performs backup functions

          SYNOPSIS
               backup [-t] [-p | -c | -f <files> | -u "<user1> [user2]"]
                  -d <device>

               backup -h

          DESCRIPTION
               -h   produces a history of backups.  Tells the user when the
                    last complete and incremental/partial backups were
                    done.

               -c   complete backup.  All files changed since the system
                    was installed are backed up.

               -p   incremental/partial backup.  If an incremental/partial
                    backup was done, all files modified since that time are
                    backed up, otherwise all files modified since the last
                    complete backup are backed up.  A complete backup must
                    be done before a partial backup.

               -f   backup files specified by the <files> argument.  File
                    names may contain characters to be expanded ( i.e., *,
                    .) by the shell.  The argument must be in quotes.

               -u   backup a user's home directory.  All files in the
                    user's home directory will be backed up.  At least one
                    user must be specified but it can be more.  The argu-
                    ment must be in quotes if more than one user is speci-
                    fied.  If the user name is "all", then all the user's
                    home directories will be backed up.

               -d   used to specify the device to be used.  It defaults to
                    /dev/rdsk/f0q15d (the 1.2M floppy).

               -t   used when the device is a tape.  This option must be
                    used with the -d option when the tape device is speci-
                    fied.

               A complete backup must be done before a partial backup can
               be done.  Raw devices rather than block devices should
               always be used.  The program can handle multi-volume back-
               ups.  The program will prompt the user when it is ready for
               the next medium.  The program will give you an estimated
               number of floppies/tapes that will be needed to do the
               backup.  Floppies MUST be formatted before the backup is
               done.  Tapes do not need to be formatted.  If backup is done
               to tape, the tape must be rewound.

          SEE ALSO
               qt(7).


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