doc/tool: introduce "ceph tell x help" command in man

Signed-off-by: liuchang0812 <liuchang0812@gmail.com>

diff --git a/doc/man/8/ceph.rst b/doc/man/8/ceph.rst
index ba3ccdfe2765d5bc82c3effc728c59bd0cdda870..805e4ad81faa03a91658e93b4cfc519b9b88c99a 100644 (file)
--- a/doc/man/8/ceph.rst
+++ b/doc/man/8/ceph.rst
@@ -1265,6 +1265,13 @@ Usage::
 
        ceph tell <name (type.id)> <args> [<args>...]
 
+
+List all available commands.
+
+Usage::
+
+       ceph tell <name (type.id)> help
+
 version
 -------