diff --git a/util/notegrep.sh b/util/notegrep.sh
index c495f80..e49ad9c 100644
--- a/util/notegrep.sh
+++ b/util/notegrep.sh
@@ -132,6 +132,9 @@ function notegrep() {
         ;;
             -sl | --show-lines )
                 . ~/.shellnotes/util/notegrep/sl.sh
+        ;;
+            -ws | --without-string )
+                . ~/.shellnotes/util/notegrep/ws.sh
         ;;
             *)
                 echo "Invalid parameter. Proceeding in normal grep mode."
@@ -171,6 +174,9 @@ function notegrep() {
                 export option=$1
                 . ~/.shellnotes/util/notegrep/sf.sh
                 ;;
+            -sc | --split-char | -cl | --count-lines | -sf | --show-lines | -ws | --without-string)
+                echo "Invalid use of parameter '$regex'.\nUsage:\nnotegrep [PATTERN] file...\nnotegrep [OPTION] [PATTERN] file...\nnotegrep [OPTION] file...\nnotegrep [OPTION] [PATTERN]"
+                ;;
             *)
                 if [ -z $notename ]; then
                     echo "Invalid input."