1 files changed, 4 insertions, 1 deletions
diff --git a/c/ls.c b/c/ls.c
index 5d5ce43..0e2e01f 100644
--- a/c/ls.c
+++ b/c/ls.c
@@ -1,7 +1,10 @@
 #include "gbos.h"
-/* ls: list files in the filesystem. */
+/* ls [dir]: list a directory (default: current). */
 void main(void) {
+    char *argv[4];
     char name[16];
+    unsigned char argc = argv_parse(argv, 4);
     unsigned char i;
+    if (opendir(argc > 0 ? argv[0] : ".")) { puts("ls: no such directory"); nl(); return; }
     for (i = 0; flist(i, name); i++) { name[15] = 0; puts(name); nl(); }
 }