'S' size estimation option to dump.

[dump.git] / dump / dump.8.in

diff --git a/dump/dump.8.in b/dump/dump.8.in
index 262685868d0891e2808cdd0a89c350cf81bb5e76..bb7503331c73581deeb636401223ed23c1352321 100644 (file)
--- a/dump/dump.8.in
+++ b/dump/dump.8.in
@@ -30,17 +30,17 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"    $Id: dump.8.in,v 1.2 1999/10/11 13:31:10 stelian Exp $
+.\"    $Id: dump.8.in,v 1.5 1999/11/22 19:08:50 tiniou Exp $
 .\"
 .Dd __DATE__
 .Dt DUMP 8
-.Os "__VERSION__"
+.Os "dump __VERSION__"
 .Sh NAME
 .Nm dump
 .Nd ext2 filesystem backup
 .Sh SYNOPSIS
 .Nm dump
-.Op Fl 0123456789acknu
+.Op Fl 0123456789acknSu
 .Op Fl B Ar records
 .Op Fl b Ar blocksize
 .Op Fl d Ar density
@@ -51,7 +51,7 @@
 .Op Fl T Ar date
 .Ar filesystem
 .Nm dump
-.Op Fl 0123456789acknu
+.Op Fl 0123456789acknSu
 .Op Fl B Ar records
 .Op Fl b Ar blocksize
 .Op Fl d Ar density
@@ -218,6 +218,13 @@ prompts for a new tape.
 It is recommended to be a bit conservative on this option.
 The default tape length is 2300 feet.
 .ne 1i
+.It Fl S
+Size estimate. Determine the amount of space
+that is needed to perform the dump without
+actually doing it, and display the estimated
+number of blocks it will take. This is useful
+with incremental dumps to determine how many
+volumes of media will be needed.
 .It Fl T Ar date
 Use the specified date as the starting time for the dump
 instead of the time determined from looking in
@@ -380,6 +387,13 @@ The environment variable
 will be used to determine the pathname of the remote
 .Xr rmt 8
 program.
+.It Ev RSH
+.Nm Dump
+uses the contents of this variable to determine the name of the
+remote shell command to use when doing remote backups (rsh, ssh etc.). 
+If this variable is not set, 
+.Xr rcmd 3
+will be used, but only root will be able to do remote backups.
 .Sh FILES
 .Bl -tag -width __DUMPDATES__ -compact
 .It Pa /dev/st0
@@ -437,10 +451,10 @@ for the operator running
 .Pp
 .Nm Dump
 cannot do remote backups without being run as root, due to its
-security history.  This will be fixed in a later version of
-.Bx Free .
+security history.
 Presently, it works if you set it setuid (like it used to be), but this
-might constitute a security risk.
+might constitute a security risk. Note that you can set RSH to use
+a remote shell program instead.
 .Sh AUTHOR
 The 
 .Nm dump/restore