add script for dynamic stats

README.md

@@ -12,4 +12,26 @@ Don't forget to restart sshd after.
 
 ## Installation
 
-Copy [motd](motd) file to `/etc/motd`.
+### Banner only
+
+Copy [motd](motd) file to `/etc/motd`:
+
+```bash
+curl -s https://raw.githubusercontent.com/claranet/motd/master/motd -o /etc/motd
+```
+
+### Dynamic with script
+
+Run the [install.sh](install.sh) script as admin:
+
+```bash
+sudo ./install.sh
+```
+
+It is compatible with [update-motd](https://launchpad.net/update-motd) used by Ubuntu.
+
+For all other distributions you will have to add the following line to `/etc/pam.d/sshd`:
+
+```
+session    optional   pam_exec.so          stdout /etc/update-motd.d/00-basic
+```