Feat: lab 4

kernel/include/shell.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <initrd.h>
+#include <stddef.h>
+
+void help(void);
+void hello(void);
+void hwinfo(void);
+void memalloc(size_t size);
+void ls(file_node_t *root);
+void cat(file_node_t *root, const char *filename);
+void reboot(void);
+
+int // is continue
+shell(file_node_t *);