BACKUP(ADM) UNIX System V
Name
backup - performs UNIX backup functions
Syntax
backup [-t] [-p | -c | -f files | -u "user1 [user2]"]
-d device
backup -h
Description
The UNIX backup utility is a front-end for the cpio(C)
utility. Use restore(ADM) to restore backups made with this
utility. It is not recommended for routine system backups;
use the sysadmsh(ADM) interface for system backups.
-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. This option backs up only
the files that have been modified since the date of the
last backup. 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
argument must be in quotes if more than one user is
specified. 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
specified.
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
backups. 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, except mini-
cartridge tapes. If backup is done to tape, the tape must
be rewound.
xbackup is the equivalent utility for XENIX filesystems.
(printed 8/23/89) BACKUP(ADM)