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Hush, a modern shell scripting language

hush-shell.github.io

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Re: Hush, a modern shell scripting language

#21

Post by jordemort »

JNRowe wrote: post #16
DiabloD3 wrote: post #10

The unfortunate truth of all such projects: if it isn't pre-installed on all reasonably complete Linux distos, it can truly succeed, no matter how awesome and cool it is... ... which is why I try to write as much stuff as POSIX sh as possible, and sometimes I have to throw in a Bashism to get by. And I say this as someone that wishes sh was better, semi-lovingly.

I think part of the problem is that we still don't have a standard /bin/sh even though there is a written standard. It feels fair to me to suggest that you can call dash the working standard on Linux, but you can't trust that beyond Linux systems(and I'm ignoring installs that are busybox-based here too). And that also feels like the problem with extending a script with a few bashisms too, as you're suddenly trying t…

Shellcheck helps a lot with this, I won't write shell without it anymore: https://www.shellcheck.net/

Re: Hush, a modern shell scripting language

#23

Post by DiabloD3 »

jordemort wrote: post #21
JNRowe wrote: post #16

Earlier quoted context omitted.

I think part of the problem is that we still don't have a standard /bin/sh even though there is a written standard. It feels fair to me to suggest that you can call dash the working standard on Linux, but you can't trust that beyond Linux systems(and I'm ignoring installs that are busybox-based here too). And that also feels like the problem with extending a script with a few bashisms too, as you're suddenly trying t…

Shellcheck helps a lot with this, I won't write shell without it anymore: https://www.shellcheck.net/

Here here, this has massively improved my code to the point I no longer fear sh and what horrible things I have unleashed.

Re: Hush, a modern shell scripting language

#24

Post by caymanjim »

DiabloD3 wrote: post #10

The unfortunate truth of all such projects: if it isn't pre-installed on all reasonably complete Linux distos, it can truly succeed, no matter how awesome and cool it is... ... which is why I try to write as much stuff as POSIX sh as possible, and sometimes I have to throw in a Bashism to get by. And I say this as someone that wishes sh was better, semi-lovingly.

It wasn't that long ago that a fresh Unix install of any flavor didn't come with Perl, Python, zsh, or other common shell or scripting languages. And there's already a trend away from installing those by default. Since adding them now takes mere seconds, the barrier is low.

Re: Hush, a modern shell scripting language

#25

Post by cjohnson318 »

chaorace wrote: post #4

Is this really a shell scriping language? Hush isn't an interactive shell, nor does it compile to a common shell script. The only way to run these scripts is to install the hush interpreter and run the script through it. Isn't that just a normal scripting language? What's the real benefit of using this over Node or Python? I suppose the syntax is more aesthetically similar to shell scripts... but I don't exactly see…

I love Python, but if all I need to do is grab one part of one line of something, and put it into some other command, then I'm just going to use some unholy mixture of sed, awk, or whatever. If I did the same thing in Python, I'd end up with thirty lines or more.

Re: Hush, a modern shell scripting language

#27

Post by SPBS »

Note to author: the part with actual shell examples is buried too deep, I didn't think it was capable of actual shell things (seemed more like a scripting language) until I came across the 'Shell Capabilities' chapter. Seems like an obvious title but I completely glossed over it while perusing until I did a keyword search for 'redirection', and I imagine many people will too.

Consider putting everything on a single page like oil shell does [http://www.oilshell.org/release/latest/doc/oil-language-tour...], so that simply scrolling down will show the shell examples without having to manually click click click the next button.

Re: Hush, a modern shell scripting language

#28

Post by colordrops »

DiabloD3 wrote: post #10

The unfortunate truth of all such projects: if it isn't pre-installed on all reasonably complete Linux distos, it can truly succeed, no matter how awesome and cool it is... ... which is why I try to write as much stuff as POSIX sh as possible, and sometimes I have to throw in a Bashism to get by. And I say this as someone that wishes sh was better, semi-lovingly.

How often do you run into an issue where things only would have worked if you use sh? What domain are you working in?
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