Not showing the actual command running inside a tmux session

[norman784]

Describe the Bug

In fish/zsh when you run a command inside a tmux session you see the command name in the tmux tab, but nushell always shows nu

To Reproduce

Run a tmux session and open some tabs

Expected behavior

Show the name of the corresponding command being running

Screenshots

zsh

nushell

Configuration

───┬────────────────────┬───

│ Column0 │ Column1

───┼────────────────────┼─── 0 │ version │ 0.34.0 1 │ build_os │ macos-aarch64 2 │ rust_version │ rustc 1.53.0 (53cb7b09b 2021-06-17) 3 │ rust_channel │ stable-aarch64-apple-darwin (default) 4 │ cargo_version │ cargo 1.53.0 (4369396ce 2021-04-27) 5 │ pkg_version │ 0.34.0 6 │ build_time │ 2021-07-22 16:58:11 7 │ build_rust_channel │ release 8 │ features │ ctrlc, dataframe, default, rustyline, term, which, zip 9 │ installed_plugins │ fetch, match, post, ps, sys ───┴────────────────────┴───

Additional Context

No response

[xanderificnl]

I'm having the same problem. Have you been able to figure this out?

[norman784]

I didn't, I switched back to zsh, there are other blockers for my every day use.

[xanderificnl]

That's unfortunate. I'm currently evaluating Nu, coming mostly from Fish. It's definitely different! Refreshing actually, but yeah, there are a couple of things (amongst others, this issue) that get in the way.

For the maintainers: This is my configuration:

───┬────────────────────┬────────────────────────────────────────────────────────────────────────────────────
 # │      Column0       │                                      Column1                                       
───┼────────────────────┼────────────────────────────────────────────────────────────────────────────────────
 0 │ version            │ 0.36.0                                                                             
 1 │ build_os           │ linux-x86_64                                                                       
 2 │ rust_version       │ rustc 1.53.0                                                                       
 3 │ cargo_version      │ cargo 1.53.0                                                                       
 4 │ pkg_version        │ 0.36.0                                                                             
 5 │ build_time         │ 1980-01-01 00:00:00 +00:00                                                         
 6 │ build_rust_channel │ release                                                                            
 7 │ features           │ clipboard-cli, ctrlc, dataframe, default, rustyline, term, trash, uuid, which, zip 
 8 │ installed_plugins  │                                                                                    
───┴────────────────────┴────────────────────────────────────────────────────────────────────────────────────

[xanderificnl]

Tmux is the culprit. It's catching the escape sequence and not passing it through, see this comment.

This'll work to change the terminal emulator's title while in tmux:

printf '\033Ptmux;\033%s\033\\' (echo [(ansi -o '0') 'some title' (char bel)] | str collect)

And this'll rename the tmux window:

printf '\033k%s\033\\' 'it changed, woa!'

I'm currently just setting the pane title to the last segment of the current path (more or less to test with, and I use starship.rs.):

prompt = "printf '\\033k%s\\033\\\\' (pwd | path split | last);starship_prompt"

To be fair, I don't know if this is the right way, but I've spent way too much time on this issue already. So if it works... ;)

[rosshadden]

I'm not convinced that tmux is the culprit. I encounter this in tmux but I also encounter it without. I gave some more details here but essentially if I have my terminal tell me the currently running process, it always says nu even if you run a process. Whereas in bash and zsh and presumably others if you launch, say, vim, the running process / title will be vim.

[sholderbach]

Should be closed by #6206, reopen if you encounter issues on your system