POSIX

spells/install-service-template

@@ -43,7 +43,7 @@ while IFS= read -r line; do
     if echo "$line" | grep -q '\$'; then
         var=$(echo "$line" | sed -n -e 's/^.*\$\([A-Z_]*\).*$/\1/p')
         if [ -n "$var" ]; then
-            value="${!var}"
+            eval value=\$$var
             if [ -z "$value" ]; then
                 echo "Enter a value for $var: "
                 read -r value