diff --git a/Labb4/ovning3_ver1.sh b/Labb4/ovning3_ver1.sh
new file mode 100755
index 0000000..cae6599
--- /dev/null
+++ b/Labb4/ovning3_ver1.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Övning 3, version1, labb 4
+# Replace and count words 
+
+# Define some variables
+File="$1"
+Old="$2"
+New="$3"
+
+# Sanity checks
+if [ $# -ne 3 ]; then
+	echo "Usage $0 <filename> <old_word> <new_word>"
+	exit 2
+fi
+
+if [ ! -r $File ]; then
+	echo "We can't read that file"
+	exit 2
+fi
+
+# Main script
+Data=`cat $1`
+Alt=${Data/$Old/$New}
+
+echo "$Alt"
+
+exit 0
diff --git a/Labb4/test.txt b/Labb4/test.txt
new file mode 100644
index 0000000..74a8e7b
--- /dev/null
+++ b/Labb4/test.txt
@@ -0,0 +1,2 @@
+Test jag hej
+Ny rad