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diff --git a/doc/psftp.but b/doc/psftp.but
index 57ba0fa5..40094376 100644
--- a/doc/psftp.but
+++ b/doc/psftp.but
@@ -1,4 +1,4 @@
-\versionid $Id: psftp.but,v 1.3 2001/12/16 13:33:04 simon Exp $
+\versionid $Id: psftp.but,v 1.4 2001/12/31 16:15:19 simon Exp $
 
 \C{psftp} Using PSFTP to transfer files securely
 
@@ -153,6 +153,18 @@ processing even if a command fails to complete successfully.
 You might want this to happen if you wanted to delete a file and
 didn't care if it was already not present, for example.
 
+\S{psftp-usage-options-batch}\c{-batch}: avoid interactive prompts
+
+If you use the \c{-batch} option, PSFTP will never give an
+interactive prompt while establishing the connection. If the
+server's host key is invalid, for example (see \k{gs-hostkey}), then
+the connection will simply be abandoned instead of asking you what
+to do next.
+
+This may help PSFTP's behaviour when it is used in automated
+scripts: using \c{-batch}, if something goes wrong at connection
+time, the batch job will fail rather than hang.
+
 \H{psftp-commands} Running PSFTP
 
 Once you have started your PSFTP session, you will see a \c{psftp>}