diff --git a/19.1--Installtion-using-egroupware-docker-RPM-DEB-package.md b/19.1--Installation-using-egroupware-docker-RPM-DEB-package.md
similarity index 95%
rename from 19.1--Installtion-using-egroupware-docker-RPM-DEB-package.md
rename to 19.1--Installation-using-egroupware-docker-RPM-DEB-package.md
index 9602dcd..71b316a 100644
--- a/19.1--Installtion-using-egroupware-docker-RPM-DEB-package.md
+++ b/19.1--Installation-using-egroupware-docker-RPM-DEB-package.md
@@ -10,9 +10,10 @@ I'll show it here in details for Ubuntu 18.04, for other distributions use [this
 
 Run the following commands as root on Ubuntu 18.04 to install or update EGroupware:
 ```
-sudo sh -c "echo 'deb http://download.opensuse.org/repositories/server:/eGroupWare:/trunk/xUbuntu_18.04/ /' > /etc/apt/sources.list.d/server:eGroupWare:trunk.list"
-wget -nv https://download.opensuse.org/repositories/server:eGroupWare:trunk/xUbuntu_18.04/Release.key -O - |
-sudo apt-key add -
+echo 'deb http://download.opensuse.org/repositories/server:/eGroupWare:/trunk/xUbuntu_18.04/ /' | \ 
+   sudo tee /etc/apt/sources.list.d/server:eGroupWare:trunk.list
+wget -nv https://download.opensuse.org/repositories/server:eGroupWare:trunk/xUbuntu_18.04/Release.key -O - | \
+   sudo apt-key add -
 sudo apt-get update
 sudo apt-get install egroupware-docker
 ```