GMS Linux: start?

userprog/mkdir/mkdir.c

@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+int main(int argc, char *argv[]) {
+    if (argc != 2) {
+        printf("Usage: mkdir <dirname>\n");
+        return 1;
+    }
+
+    // 0755: 권한 (rwxr-xr-x)
+    if (mkdir(argv[1], 0755) < 0) {
+        perror("mkdir");
+        return 1;
+    }
+
+    return 0;
+}