Touch files before addKey or addOrEditKeyValPair (#4999)

advanced/Scripts/utils.sh

@@ -31,6 +31,9 @@ addOrEditKeyValPair() {
   local key="${2}"
   local value="${3}"
 
+  # touch file to prevent grep error if file does not exist yet
+  touch "${file}"
+
   if grep -q "^${key}=" "${file}"; then
     # Key already exists in file, modify the value
     sed -i "/^${key}=/c\\${key}=${value}" "${file}"
@@ -51,6 +54,9 @@ addKey(){
   local file="${1}"
   local key="${2}"
 
+  # touch file to prevent grep error if file does not exist yet
+  touch "${file}"
+
   if ! grep -q "^${key}" "${file}"; then
     # Key does not exist, add it.
     echo "${key}" >> "${file}"