ASM #16929 Service Backup log cleanup script issue on test systems

Change-Id: I09f184a01081cf025854da60a298345b29ffc15f

Former-commit-id: 66fc128c8be25753904dfff65840334bfdff7963

edexOsgi/com.raytheon.uf.tools.gfesuite.servicebackup/svcBackup/ServiceBackup/scripts/cleanup_svcbu_logs

@@ -1,5 +1,6 @@
 #!/bin/bash
 
+
 if [ ${#AWIPS_HOME} = 0 ]
 then
         path_to_script=`readlink -f $0`
@@ -8,6 +9,12 @@ fi
 
 . ${AWIPS_HOME}/GFESuite/ServiceBackup/configuration/svcbu.env
 
+if [ ${#IFPS_LOG} = 0 ]
+then
+    echo "ERROR: environment variable IFPS_LOG is undfined, exit."
+    exit 1
+fi
+
 find ${IFPS_LOG}/* -mtime +7 -exec rm -fr {} \; 2>/dev/null