diff --git a/gaboshlib/g_backup.bashfunc b/gaboshlib/g_backup.bashfunc
index ef392d2..57c120d 100644
--- a/gaboshlib/g_backup.bashfunc
+++ b/gaboshlib/g_backup.bashfunc
@@ -4,21 +4,21 @@ function g_backup {
 
   #### Config defaults
   # dir(s) to backup (: separated)
-  BACKUPDIRS=""
+  local BACKUPDIRS=""
   # Excludefile für rsync
-  BACKUPEXCLUDES=""
+  local BACKUPEXCLUDES=""
   # Backup-Server (Backup-Destination)
-  BACKUPSRV=""
+  local BACKUPSRV=""
   # SSH Port
-  BACKUPSRVPORT="22"
+  local BACKUPSRVPORT="22"
   # SSH User
-  BACKUPSRVUSER=""
+  local BACKUPSRVUSER=""
   # Destination path on Backup-Server
-  BACKUPSRVPATH=""
+  local BACKUPSRVPATH=""
   # run optional command on server and start backup only on success
-  BACKUPSRVTESTCMD=""
+  local BACKUPSRVTESTCMD=""
   # Copy only without hostname/backup-date Structure
-  NODIRSTRUCT=""
+  local NODIRSTRUCT=""
 
   g_tries=5
   g_tries_delay=120
@@ -37,7 +37,7 @@ function g_backup {
   [ -n "$7" ] && BACKUPSRVTESTCMD=$7
   [ -n "$8" ] && NODIRSTRUCT=$8
 
-  usage="
+  local usage="
   $0 BACKUPDIR1[:BACKUPDIR2:BACKUPDIR3] BACKUPPATH [BACKUPEXCLUDES BACKUPSRV BACKUPSRVPORT BACKUPSRVUSER BACKUPSRVTESTCMD NODIRSTRUCT]"
 
   [ -z "$BACKUPDIRS" ] && g_echo_error "No Directory to Backup (BACKUPDIR) given $usage" && return 1
@@ -89,8 +89,8 @@ var-lib-docker
   if [ -n "$BACKUPSRV" ] 
   then
     [ -z "$BACKUPSRVPORT" ] && g_echo_error "No SSH-Port given $usage" && return 1
-    sshopts="g_retrycmd ssh -n -p $BACKUPSRVPORT -o BatchMode=yes -o StrictHostKeyChecking=accept-new  $BACKUPSRVUSER@$BACKUPSRV"
-    sshoptsnoretry="ssh -n -p $BACKUPSRVPORT -o BatchMode=yes -o StrictHostKeyChecking=accept-new  $BACKUPSRVUSER@$BACKUPSRV"
+    local sshopts="g_retrycmd ssh -n -p $BACKUPSRVPORT -o BatchMode=yes -o StrictHostKeyChecking=accept-new  $BACKUPSRVUSER@$BACKUPSRV"
+    local sshoptsnoretry="ssh -n -p $BACKUPSRVPORT -o BatchMode=yes -o StrictHostKeyChecking=accept-new  $BACKUPSRVUSER@$BACKUPSRV"
   fi
 
   rsyncopts="-aXAh --no-inc-recursive --timeout=180 --force -yy --one-file-system --open-noatime --delete-after --ignore-missing-args --partial"
@@ -98,10 +98,10 @@ var-lib-docker
   [ -n "$BACKUPSRV" ] && rsyncopts="$rsyncopts -e 'ssh -p $BACKUPSRVPORT'"
   [ "$BACKUPSRVUSER" == "root" ] && syncopts="$rsyncopts --numeric-ids"
 
-  ORIGIFS="$IFS"
+  local ORIGIFS="$IFS"
   IFS=':'
   # Prepare Dest-Dir on Backup-Server
-  CMDS="mkdir -p ${BACKUPSRVPATH}/$(hostname):chmod 700 ${BACKUPSRVPATH}/$(hostname)"
+  local CMDS="mkdir -p ${BACKUPSRVPATH}/$(hostname):chmod 700 ${BACKUPSRVPATH}/$(hostname)"
   [ -n "$NODIRSTRUCT" ] && CMDS="mkdir -p ${BACKUPSRVPATH}"
   [ -n "$BACKUPSRVTESTCMD" ] && CMDS="$BACKUPSRVTESTCMD:$CMDS"
   for CMD in $CMDS
@@ -151,7 +151,7 @@ var-lib-docker
     # move from -incomplete to default dir
     g_runcmd $sshopts mv "$BACKUPSRVPATH_WITH_DATE_INCOMPLETE" "$BACKUPSRVPATH_WITH_DATE" || continue
  
-    yearmonth="$(date +%Y-%m-)"
+    local yearmonth="$(date +%Y-%m-)"
 
     # Create monthly dir if not exists
     BACKUPSRVPATH_MONTHLY="$BACKUPSRVPATH_WITH_HOST/backup-${yearmonth}monthly/$BACKUPDIR"
@@ -164,7 +164,7 @@ var-lib-docker
     fi
 
     # Cleanup old backups
-    yearmonthbefore="$(date +%Y-%m- --date='-1 month')"
+    local yearmonthbefore="$(date +%Y-%m- --date='-1 month')"
     $sshopts find $BACKUPSRVPATH_WITH_HOST -mindepth 1 -maxdepth 1 -type d -name "backup-*" | egrep -v "backup-$yearmonth|backup-$yearmonthbefore|backup-20[0-9][0-9]-[0-9][0-9]-monthly" | while read g_toremove 
     do
       g_echo_warn "Removing old Backup $g_toremove"