Index: drbl-virt/sbin/drbl_PXE_PV-VM_create.sh
===================================================================
--- drbl-virt/sbin/drbl_PXE_PV-VM_create.sh	(revision 191)
+++ drbl-virt/sbin/drbl_PXE_PV-VM_create.sh	(revision 192)
@@ -33,5 +33,5 @@
 echo "-h    deploy vm to which host"
 echo "Examples: "
-echo "drbl_PXE_PV-VM_create.sh options -v drbl110 -c 2 -ram 512 -h drbl101"
+echo "drbl_PXE_PV-VM_create.sh options -v drbl110 -c 2 -r 512 -h drbl101"
 }
 
@@ -41,5 +41,5 @@
 # = 1. Parse parameters = 
 if [ $# -eq 0 ]; then
-Usage
+Usage && exit
 fi
 
@@ -114,5 +114,5 @@
 for IP_VM_file in $IP_VM_files
 do
-    IP_VM_line=$(cat -n $IP_VM_file | grep "$vm_name" | awk '{print $1}') 
+    IP_VM_line=$(cat -n $Work_Home/etc/$IP_VM_file | grep "$vm_name" | awk '{print $1}') 
     if [ -n $IP_VM_line ]; then
         IP_VM_right_file=$IP_VM_file
@@ -131,5 +131,5 @@
 # start get mac address
 IP_VM_eth=$(echo $IP_VM_right_file | sed 's/IP_VM_//g' )
-vm_mac=$(cat $Work_Home/etc/macadr-VM-${IP_VM_eth}.txt | sed -n "${IP_VM_right_line}")
+vm_mac=$(cat $Work_Home/etc/macadr-VM-${IP_VM_eth}.txt | sed -n "${IP_VM_right_line}p")
 
 # = 3. Generate PXE PV-VM configuration  =
@@ -139,5 +139,8 @@
 
 vm_cfg=${home_dir}/${vm_name}.cfg
+
+if [ -e $vm_cfg ]; then
 rm $vm_cfg
+fi
 
 # start to generate