vim

cleonos/CMakeLists.txt

@@ -171,6 +171,7 @@ set(USER_SHELL_COMMAND_APPS
     diskinfo mkfsfat32 mount partctl
     shutdown restart exit clear ansi ansitest wavplay fastfetch memstat fsstat taskstat userstat
     shstat stats tty dmesg kbdstat mkdir touch write append cp mv rm kdbg bmpview qrcode browser
+    vim
 )
 
 foreach(SRC IN LISTS USER_APP_MAIN_SOURCES)

cleonos/c/apps/help_main.c

@@ -15,6 +15,7 @@ static int ush_cmd_help(void) {
     ush_writeln("  ansi / ansitest / color");
     ush_writeln("  bmpview <file.bmp> [cols]");
     ush_writeln("  qrcode [--ecc <L|M|Q|H>] <text>");
+    ush_writeln("  vim [file]         (vim-like editor: normal/insert/:w/:q/:wq)");
     ush_writeln("  wavplay <file.wav> [steps] [ticks] / wavplay --stop");
     ush_writeln("  fastfetch [--plain]");
     ush_writeln("  doom [wad_path]    (framebuffer bootstrap renderer)");

cleonos/c/apps/shell/shell_cmd.c

@@ -2460,6 +2460,18 @@ static int ush_execute_single_command(ush_state *sh, const char *cmd, const char
 
     (void)allow_external;
 
+    /*
+     * Keep cd as a hard builtin so cwd updates never depend on
+     * external command context files.
+     */
+    if (ush_streq(cmd, "cd") != 0) {
+        success = ush_cmd_cd(sh, arg);
+        if (out_success != (int *)0) {
+            *out_success = success;
+        }
+        return 1;
+    }
+
     if (ush_try_exec_external(sh, cmd, arg, &success) != 0) {
         if (out_success != (int *)0) {
             *out_success = success;