diff --git a/bash/setext.sh b/bash/setext.sh
new file mode 100755
index 0000000..832e0dc
--- /dev/null
+++ b/bash/setext.sh
@@ -0,0 +1,16 @@
+for i;
+do 
+	real_ext=$(file $i | cut -d':' -f2 | cut -d' ' -f2)
+	##echo $ext
+	if [ $real_ext == "JPEG" ];
+	then
+		ext="jpg"
+	elif [ $real_ext == "TIFF" ];
+	then
+		ext="tif"
+	else
+		ext=$real_ext
+	fi
+	new_ext=${ext,,}
+	mv $i ${i%.*}.$new_ext	
+done