add rsync

til.md

@@ -769,3 +769,10 @@ pamu2fcfg -n >> ~/.config/Yubico/u2f_keys # for a 2nd key
 
 auth       sufficient   pam_u2f.so
 ```
+
+# rsync
+
+* specify ssh key
+* remote sudo
+
+`sudo rsync -Pau --delete --stats --rsync-path="sudo rsync" -e "ssh -i $HOME/.ssh/go.pem" ubuntu@3.121.216.72:~/postgres/ /mnt/osm/`