Error "help: permission denied" when using ADB Using this tutorial, I installed ADB shell. I actually just wanted to mess around and see what can it do. My device isn't rooted but that's ok, I'm not trying to do anything dangerous. Just trying run normal user linux commands.

USB debugging is enabled.

So I typed:



What's that supposed to be? Is really exit the only supported command?
First of all help is no actual command that comes with the Linux system (even though many systems like Ubuntu have one). If you would like to see valid commands, just list all files inside /system/(x)bin with the appropriate ls &lt;directory&gt; command.

If help is listed there then it may not be your usual help command you know from windows.

It may also be a limitation by the manufacturer so that terminal access is restricted to the system only.