Mosh VS PowerShell

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've been using Kitty's SSH features for as long as I can remember but I recently setup Mosh and I really like how it doesn't drop connections and supports roaming.

I am surprised many people write about ssh into a server. Mosh[1] feels more responsive and it also supports longer sessions.

[1] - https://mosh.org/

Also they support Mosh which I install on my servers. It's way better than plain ssh when you're on mobile networks and wifi, especially with connections that are unreliable or bandwidth-constrained.

I’ve recently been experimenting with MoSH (Mobile Shell). Basically think SSH but with UDP - so more resilient to shoddy network conditions, roaming access points, etc.

If it is not for production (e.g. running as a daemon or a server) and you only care about the development, another ad-hoc way is using screen/tmus-like software incl. byobu, and combine it with mosh.

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

This smells like when PowerShell aliased curl and wget to a completely different command, with incompatible arguments.

https://github.com/PowerShell/PowerShell/pull/1901

PowerShell is available on macOS and Linux as well (source on Github: https://github.com/PowerShell/PowerShell). It may not be as well-integrated with things like system services management, but the language still works well. You can still use all the command line tools you're used to on Linux, of course.

nushell does look interesting, though the lack of a .deb repository does put it pretty low on my to-do list.

Issue #7940 discusses potential improvements to array slicing.

Note: This can be problematic as it prevents upstream commands from running their end {} block. See here. The new clean {} block introduced in PowerShell v7.3 does not suffer from this issue.

Can you give an example of something that PS can do that is built-in for text processing, instead of a proprietary symbolic query language?

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

https://github.com/PowerShell/PowerShell/blob/master/LICENSE... is the MIT license. (Microsoft supplies debs directly which may reduce the motivation for Debian to do so.)

Oh, heh, also https://github.com/PowerShell/PowerShell/blob/master/docs/bu... the build script is written in PowerShell, so there's a bootstrapping problem :-) (Debian has solved those before of course, but with community sentiment like the above maybe noone is motivated to bother.)

According to https://github.com/PowerShell/PowerShell/issues/19628, the default behaviour is invoked whenever the completion script returns no output. To attempt to do so, I tried exiting the script via returning an empty string, or using the return keyword to exit the script completely, unfortunately with no avail. Is there a technique to achieve what I want, and is there any documentation about it other than the official one? Thank you in advance.