Direct download link for server files?

use steam to update the server files.

centos, debian redhat all linux no problem

https://developer.valvesoftware.com/wiki/SteamCMD

Quote from Zaggeh

Unfortunately, when I 'wget download.rising-world.net/down…?type=server&filetype=tar', It appears to be downloading a file named 'download.php?type=server&filetype=tar' rather than the actual server .tar file

This seems to be caused by the redirection. Do you still get the right file, i.e. the correct filesize? In this case you could just treat it like a .tar file, or alternatively rename it to a .tar file.
Or you could eventually use wget --content-disposition if it's supported.

I am using the following command line to download the serverfiles(debian jessie):
wget -O ~/newserver.tar "http://download.rising-world.net/download.php?type=server&filetype=tar"
The "-O" should do the magic thing .. saving the connected link data into newserver.tar file.

There may be other types of archieves but at the moment those tar archieves works well enough.

You could use a script like(maybe it works ONLY using debian jessie):

wget -O ~/newserver.tar "http://download.rising-world.net/download.php?type=server&filetype=tar"
                cmp ~/newserver.tar ~/download/newserver.tar
                RETVAL=$?
                if [ $RETVAL -eq 0 ]; then
                        echo -e "No Update.."
                        exit
                else
                        echo -e "Update found!"
                fi
(here your code for stopping the game and extracting all files (except server.properies :D ), copying them to their proper position and restarting the gameserver again)

I still use the mc (midnightcommander) to extract and copy the files manually.. IF I ever have plenty of time.. i would like to rewrite the script for automatism