backup(1) (XENIX Compatibility Package) backup(1)
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. 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 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/rmt/ctape1.
-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 tapes that will be needed to do the backup.
Tapes do not need to be formatted. If backup is done to tape, the
tape must be rewound.
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