1 files changed, 6 insertions, 0 deletions
diff --git a/ucase.sh b/ucase.sh
index 33892a3..cd42212 100755
--- a/ucase.sh
+++ b/ucase.sh
@@ -3,6 +3,12 @@
 IFS='
 '
 
+if [ "$1" ] ; then
+    flist=$(find . -type f -iname "*.$1")
+else
+    flist=$(find . -type f)
+fi
+
 flist=$(find . -type f)
 
 for i in $flist ; do