Mosh VS PowerShell

Try pairing tmux with mosh, it's how I've been working for years whenever I'm forced to admin through a brittle straw. Mosh combats lag pretty well and doesn't care if your connection drops intermittently. https://mosh.org/

Curious what advantages this has over mosh?

https://mosh.org/

Normal ssh is TCP-based. But there is also a different implementation named mosh.

Do you know mobile shell (mosh)? [1]

Seems like most of the features you need are what mosh offers. I've been using it for decades, probably, and it is pretty awesome for latent mobile connections (read as: throttled 2G @16kBit/s).

https://github.com/mobile-shell/mosh

I use tmux, but as far as unreliable connections, I've found mosh[0] to be the best solution to the problem (when you have the ability to install it). It basically runs a background process on connection not tied to the session that your client will automatically reconnect to if the connection fails. I regularly close my laptop, travel between home and work, open it back up and the connection is available almost instantly.

[0] https://mosh.org/

If you haven’t already, and I know this doesn’t hold up for GUI emacs or vim, but consider running them through https://mosh.org/

FWIW, I wouldn't try to parse escape sequences "directly" from the input bytestream -- it's easy to end up with annoying bugs. Longer-term it's probably better to separate the logic e.g.:

- First step (for a UTF-8-input terminal emulator) means "lexing" the input bytestream as UTF-8 into a stream of USVs, which involves some subtleties (https://github.com/mobile-shell/mosh/blob/master/src/termina...).

- Second step is to run the DEC parser/FSM logic on the sequence of USVs, which is independent of the escape sequences (https://vt100.net/emu/dec_ansi_parser ; https://github.com/mobile-shell/mosh/blob/master/src/termina...).

- And then the third step is for the terminal to execute the "dispatch"/"execute"/etc. actions coming from the FSM, which is where the escape sequences and control chars get implemented (https://github.com/mobile-shell/mosh/blob/master/src/termina...).

Without this separation, it's easier to end up with bugs where, e.g., a UTF-8 sequence or an ANSI escape sequence is treated differently when it's split between multiple read() calls vs. all in one call.

Btw, you can use mosh to hide the latency of SSH. https://mosh.org/

I'll take this moment to point out that the PowerShell feels like a modern shell and is open source https://github.com/PowerShell/PowerShell (MIT license). If you want something more modern give it a try. Native support for JSON and XML and parallel streams.

That said, I'm glad to see another major release of Fish because it's for having option that we get evolution.

Download: https://github.com/PowerShell/PowerShell/releases/download/v7.4.5/PowerShell-7.4.5-win-x64.msi

PowerShell is so alien to an experienced bash/zsh/etc. user that it's an entirely different language not any kind of drop-in replacement. Its designers also refuse to add simple things to make the switch any easier (e.g. https://github.com/PowerShell/PowerShell/issues/3316).

Not necessarily:

1. UNIX-compatibility aliases like "ls -> Get-ChildItem" and "cat -> Get-Content" are not defined in PowerShell on Linux or macOS. For a complete list of these, see the PowerShell source code[1] (look for "#if !UNIX").

2. A number of aliases from PowerShell ≤ 5.1 were removed in PowerShell Core (≥ 6.0), including the particularly annoying "curl -> Invoke-WebRequest" (conflicts with curl.exe) and "sc -> Set-Content" (conflicts with sc.exe).

[1] https://github.com/PowerShell/PowerShell/blob/8ea1598964590b...

and do a no-install copy-paste deployment of powershell 7 and modules. (I'm not saying you should do this instead of using Lua, just that you can).

[1] https://github.com/PowerShell/PowerShell/releases

msiexec.exe /package https://github.com/PowerShell/PowerShell/releases/download/v7.2.6/PowerShell-7.2.6-win-x64.msi /quiet ADD_EXPLORER_CONTEXT_MENU_OPENPOWERSHELL=1 ADD_FILE_CONTEXT_MENU_RUNPOWERSHELL=1 ENABLE_PSREMOTING=1 REGISTER_MANIFEST=1 USE_MU=1 ENABLE_MU=1 ADD_PATH=1