topic Re: Getting tsh:invalid options -- 'c'\n error while running command in Network Access Control

Getting tsh:invalid options -- 'c'\n error while running command

vedsinghal — Mon, 20 Feb 2023 05:55:26 GMT

Hi,

Could someone please help me on this error? why I am getting this even after making a successful connection.

tsh:invalid options -- 'c'\n

I am trying to execute this command from my .Net 6 application through Renci.SshNet library.

Thanks in advance 🙂

Thanks

Re: Getting tsh:invalid options -- 'c'\n error while running command

Damien Miller — Mon, 20 Feb 2023 20:53:17 GMT

This section of the community is specific to network access control, endpoint access to the network so you won't find many folks in here that are familiar with .net.

But this is also not going to be a Cisco specific problem but a problem with what you are passing in code, or with the library. Where is the "c" coming from before you send the "\n" or return/newline. A single "c" alone is not a valid cisco CLI command.

Re: Getting tsh:invalid options -- 'c'\n error while running command

thomas — Tue, 28 Feb 2023 15:48:46 GMT

Sorry I don't know what platform / software / technology you are talking about.

You will need to be a lot more specific.

See

Re: Getting tsh:invalid options -- 'c'\n error while running command

victor.ortizDD — Wed, 25 Jun 2025 12:25:15 GMT

Hello,

Have you found a solution for your problem?

I have the same issue but this occurs when doing the process of login and, in the same time, sending a command.

The same error message appears when using ssh from a linux machine and sending the following command :

ssh admin@X.X.X.X 'command XXX'
(admin@X.X.X.X) Password:
tsh: invalid option -- 'c'