diff --git a/vm-start.sh b/vm-start.sh
index f205bc8..761faf8 100755
--- a/vm-start.sh
+++ b/vm-start.sh
@@ -60,7 +60,7 @@ INIT() {
     read -p "How much memory will you need ? " -r MEMORY
     read -p "Do you want to forward ssh port (y/n) " -r entry
 
-    if [[ "$entry" =~ ^[yY]$ ]]
+    if echo "$entry" | grep -q "^[yY]$" 
     then
         FORWARD=",hostfwd=tcp::10022-:22" # forward VM 22 port to Host 10022 
     fi
@@ -68,12 +68,12 @@ INIT() {
     mkdir -p conf
     cat << EOF > "conf/$NAME-vm_var.sh"
 NAME="$NAME"
-VMHOSTNAME="\$NAME-vm"
+VMHOSTNAME="\${NAME}-vm"
 VMDRIVE="\${VMHOSTNAME}.cow"
 NPROC="$NPROC"
 MEMORY="$MEMORY"
 FORWARD="$FORWARD"
-LOCATION="\$NAME-sandbox"
+LOCATION="\${NAME}-sandbox"
 EOF
     chmod +x "conf/$NAME-vm_var.sh"