How to execute a command wihout showing it in a terminal?

[Stefman87]

I use pty4j with jediterm, and I need to get the current directory. As I understand, to do this, I should execute something like pwd using PtyProcess process, but the command shouldn't be displayed in jediterm. I tried process.getOutputStream().write("stty -echo\n".getBytes());, but it didn’t work. Could anyone help me with this?

[segrey]

@Stefman87 Sorry for the delay. stty -echo only disables input echo (like keystrokes). So, pwd output will be visible. Also, it seems shell restores input echo after each command.
I'd suggest to provide a shell integration which will listen to commands running and report current working directory using invisible escape sequences, like OSC. Something like this Terminal.app does, see /etc/zshrc_Apple_Terminal.