(shell-command-to-string) but with a persistent shell session?

I'm using emacs on WSL and I want to unify the emacs and windows clipboard. I can run power shell commands to interact with the windows clipboard and integrate it easily enough, but a new powershell instance each time is too slow, so I want one instance of powershell that I send commands to and get output from. I can program it myself with `start-process` I think but it'll be a pain, and it seems like not an uncommon thing to want to do, so my question is is whether there's something ready made for that kind of use case

You could use a `M-x shell` session, and base your command on `comint-redirect-send-command`.

There's myriad ways. /u/7890yuiop is one way. Here's another that's a bit more specific: 1. `M-x comint-run` to run `powershell.exe` or whatever it's called. 2. Use the following snippet to send commands: (comint-redirect-send-command-to-process "my command\n" (get-buffer-create "*powershell output*") (get-buffer-process "*powershell*") nil) You can replace `nil` with `t` if you want the command to echo in the `*powershell*` buffer. Note the name of the buffer depends on the command; so you may have to tweak that. Also, I don't know if powershell works with `\n` or if you need `\r\n` to properly terminate the command. Finally, can you not use `w32-get/set-clipboard-data`?