How to run commands under non-interactive shell

[Huang Yaolong <airekans@xxxxxxxxx>]

Hi, all.

How can I run a command under non-interactive shell?
I don't want the redundant echo output of pty, and all I want is the output
from the command I run and maybe I would interrupt this command.
By doing the following, the command will not run. Notice that I was using
the C++ wrapper:
      execChannel->requestShell();
      const string realCommand = command + "\n";
      const int count = execChannel->write(realCommand.c_str(),
realCommand.size());

after doing the above, I read from the channel, but it will block there
because the command did not run yet.

How can I run the command specified?

If I request a pty, I can run the command correctly.

-- 
Best regards,
Yaolong Huang(Curtis)

Briontech China