doc: More work on the tutorial.

doc/command.dox

@@ -1,9 +1,9 @@
 /**
-@page commands Chapter 4: Passing remote commands
-@section remote_commands Passing remote commands
+@page command Chapter 4: Passing a remote command
+@section remote_command Passing a remote command
 
 Previous chapter has shown how to open a full shell session, with an attached
-terminal or not. If you only need to execute commands on the remote end,
+terminal or not. If you only need to execute a command on the remote end,
 you don't need all that complexity.
 
 The method described here is suited for executing only one remote command.
@@ -13,9 +13,9 @@ a non-interactive remote shell, as explained in previous chapter.
 @see shell
 
 
-@subsection exec_remote Executing remote commands
+@subsection exec_remote Executing a remote command
 
-The first steps for executing remote commands are identical to those
+The first steps for executing a remote command are identical to those
 for opening remote shells. You first need a SSH channel, and then
 a SSH session that uses this channel:
 

doc/guided_tour.dox

@@ -356,7 +356,7 @@ int main()
 
 At this point, the authenticity of both server and client is established.
 Time has come to take advantage of the many possibilities offered by the SSH
-protocol: execute remote commands, open remote shells, transfer files,
+protocol: execute a remote command, open remote shells, transfer files,
 forward ports, etc.
 
 The example below shows how to execute a remote command:
@@ -416,7 +416,7 @@ int show_remote_processes(ssh_session session)
 @endcode
 
 @see @ref opening_shell
-@see @ref remote_commands
+@see @ref remote_command
 @see @ref sftp_subsystem
 @see @ref scp_subsystem
 

doc/introduction.dox

@@ -35,7 +35,7 @@ Table of contents:
 
 @subpage shell
 
-@subpage commands
+@subpage command
 
 @subpage sftp