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diff --git a/start_server_client_union.sh b/start_server_client_union.sh
new file mode 100755
index 0000000..57133aa
--- /dev/null
+++ b/start_server_client_union.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# Abort the script on error.
+set -e
+
+# Use shell script's arguments for server and pipe server output to log file.
+# This script's wrapper script will read it out on exit.
+./roguelike-server "$@" > log 2>&1 &
+
+echo TEST >> log
+
+# Give server some time to start up and exit on error.
+sleep 0.01
+
+# The client should not start if the server is not running. (If the server was
+# running in the foreground, any error exit of it so far would be caught by "set
+# -e" above. But "set -e" is blind to error codes generated in the background.)
+kill -0 $! 2> /dev/null
+
+# Give server some time (max. 10 seconds) to generate its worldstate file.
+i=0
+while [ ! -e server/worldstate ] && [ $i -le 1000 ]
+do
+    sleep 0.01
+    i=`expr $i + 1`
+done
+if [ ! -e server/worldstate ]
+then
+    echo "Server failed generating worldstate file within given time limit."
+    false
+fi
+
+# Only start the interface when everything else went well.
+kill -0 $! 2> /dev/null
+./roguelike-client