1 files changed, 5 insertions, 1 deletions
diff --git a/lcase.sh b/lcase.sh
index 54359f7..c41a1a8 100755
--- a/lcase.sh
+++ b/lcase.sh
@@ -3,7 +3,11 @@
 IFS='
 '
 
-flist=$(find . -type f)
+if [ "$1" ] ; then
+    flist=$(find . -type f -iname "*.$1")
+else
+    flist=$(find . -type f)
+fi
 
 for i in $flist ; do
     fname=$(basename $i)