feat: add touch command

programs/src/rm/main.cpp

@@ -25,6 +25,7 @@ extern "C" void _start() {
         }
     } else {
         montauk::print("usage: rm [file]\n");
+        montauk::exit(-1);
     }
 
     montauk::exit(0);

programs/src/touch/main.cpp

@@ -0,0 +1,31 @@
+/*
+    * main.cpp
+    * touch command (file create)
+    * Copyright (c) 2026 Daniel Hammer
+*/
+
+#include <montauk/syscall.h>
+#include <montauk/string.h>
+
+extern "C" void _start() {
+    char args[256];
+    montauk::getargs((char *)&args, 256);
+
+    if (*args) {
+        const char* arg = montauk::skip_spaces((const char *)&args);
+        int fd = montauk::open(arg);
+        montauk::close(fd);
+
+        if (fd >= 0) { /* file already exists */
+            montauk::exit(0);
+        } else {
+            int fd = montauk::fcreate(arg);
+            montauk::close(fd);
+
+            montauk::exit(0);
+        }
+    } else {
+        montauk::print("usage: touch [filename]\n");
+        montauk::exit(-1);
+    }
+}