Improve sed

Author: thespad

root/etc/cont-init.d/20-config

@@ -25,12 +25,12 @@ if grep -q "xmx" /config/data/system.properties && grep -q "xms" /config/data/sy
 
   if [[ -n $MEM_LIMIT ]]; then
       echo "*** Setting Java memory limit to $MEM_LIMIT ***"
-      sed -i "s/unifi.xmx=.*/unifi.xmx=$MEM_LIMIT/" /config/data/system.properties 
+      sed -i "s/unifi.xmx=[0-9]\{1,5\}/unifi.xmx=$MEM_LIMIT/" /config/data/system.properties 
   fi
 
   if [[ -n $MEM_STARTUP ]]; then
       echo "*** Setting Java memory minimum to $MEM_STARTUP ***"
-      sed -i "s/unifi.xms=.*/unifi.xms=$MEM_STARTUP/" /config/data/system.properties
+      sed -i "s/unifi.xms=[0-9]\{1,5\}/unifi.xms=$MEM_STARTUP/" /config/data/system.properties
   fi
 
 else