From e2d36d493f894ae411c49e13174f6f1e979d3dea Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Wed, 28 Oct 2015 21:44:16 +0800
Subject: [PATCH] Mention -y flag

---
 dropbearkey.1 | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/dropbearkey.1 b/dropbearkey.1
index b4d202ee..66abae44 100644
--- a/dropbearkey.1
+++ b/dropbearkey.1
@@ -9,6 +9,7 @@ dropbearkey \- create private keys for the use with dropbear(8) or dbclient(1)
 .I file
 [\-s
 .IR bits ]
+[\-y]
 .SH DESCRIPTION
 .B dropbearkey
 generates a
@@ -39,12 +40,19 @@ Write the secret key to the file
 Set the key size to
 .I bits
 bits, should be multiple of 8 (optional). 
+.TP
+.B \-y
+Just print the publickey and fingerprint for the private key in \fIfile\fR.
 .SH NOTES
 The program dropbearconvert(1) can be used to convert between Dropbear and OpenSSH key formats.
 .P
 Dropbear does not support encrypted keys. 
 .SH EXAMPLE
+generate a host-key:
  # dropbearkey -t rsa -f /etc/dropbear/dropbear_rsa_host_key
+
+extract a public key suitable for authorized_keys from private key:
+ # dropbearkey -y -f id_rsa | grep "^ssh-rsa " >> authorized_keys
 .SH AUTHOR
 Matt Johnston (matt@ucc.asn.au).
 .br
-- 
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