I’ve been trying nushell and words fail me. It’s like it was made for actual humans to use! 🤯 🤯 🤯

It even repeats the column headers at the end of the table if the output takes more than your screen…

Trying to think of how to do the same thing with awk/grep/sort/whatever is giving me a headache. Actually just thinking about awk is giving me a headache. I think I might be allergic.

I’m really curious, what’s your favorite shell? Have you tried other shells than your distro’s default one? Are you an awk wizard or do you run away very fast whenever it’s mentioned?

  • apt_install_coffee@lemmy.ml
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    4 hours ago

    I used nushell for a good 6 months, it was nice having structured data, but the syntax difference to bash which I use for my day job was just too jarring to stick with.

    Fish was (for me) the right balance of nice syntactic sugar and being able to reasonably expect a bash idiom will work.

  • h4x0r@lemmy.dbzer0.com
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    3 hours ago

    Formatting doesn’t like my input for some reason so I am just going to shorten it to ls -ltc | grep '>'.

  • priapus@piefed.social
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    8 hours ago

    I love Nushell, it’s so much more pleasant for writing scripts IMO. I know some people say they’d just use Python if they need more than what a POSIX shell offers, but I think Nushell is a perfect option in between.

    With a Nushell scripts you get types, structured data, and useful commands for working with them, while still being able to easily execute and pipe external commands. I’ve only ever had two very minor gripes with Nushell, the inability to detach a process, and the lack of a -l flag for cp. Now that uutils supports the -l flag, Nushell support is a WIP, and I realized systemd-run is a better option than just detaching processes when SSHd into a server.

    I know another criticism is that it doesn’t work well with external cli tools, but I’ve honestly never had an issue with any. A ton of CLI tools support JSON output, which can be piped into from json to make working with it in Nushell very easy. Simpler tools often just output a basic table, which can be piped into detect columns to automatically turn it into a Nushell table. Sometimes strange formatting will make this a little weird, but fixing that formatting with some string manipulation (which Nushell also makes very easy) is usually still easier than trying to parse it in Bash.

      • brianary@lemmy.zip
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        2 hours ago

        What awful syntax?

        Ffs bash uses echo "${filename%.*}" and substring=${string:0:5} and lower="${var,,}" and title="${var^}" &c. It doesn’t use $ for assignment, only in expressions.

  • esa@discuss.tchncs.de
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    18 hours ago

    I’ve been using fish (with starship for prompt) for like a year I think, after having had a self-built zsh setup for … I don’t know how long.

    I’m capable of using awk but in a very simple way; I generally prefer being able to use jq. IMO both awk and perl are sort of remnants of the age before JSON became the standard text-based structured data format. We used to have to write a lot of dinky little regex-based parsers in Perl to extract data. These days we likely get JSON and can operate on actual data structures.

    I tried nu very briefly but I’m just too used to POSIX-ish shells to bother switching to another model. For scripting I’ll use #!/bin/bash with set -eou pipefail but very quickly switch to Python if it looks like it’s going to have any sort of serious logic.

    My impression is that there’s likely more of us that’d like a less wibbly-wobbly, better shell language for scripting purposes, but that efforts into designing such a language very quickly goes in the direction of nu and oil and whatnot.

    • Overspark@piefed.social
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      17 hours ago

      nu 's commands also work on JSON, so you don’t really need jq (or xq or yq) any more. It offers a unified set of commands that’ll work on almost any kind of structured data.

    • phantomwise@lemmy.mlOP
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      18 hours ago

      That’s interesting I hadn’t thought about the JSON angle! Do you mean that you can actually use jq on regular command outputs like ls -l?

      Oil is an interesting project and the backward compatibility with bash is very neat! I don’t see myself using it though, since it’s syntax is very close to bash on purpose I’d probably get oil syntax and bash syntax all mixed up in my head and forget which is which… So I went with nushell because it doesn’t look anything like bash. If you know python what do you think about xonsh? I

      • esa@discuss.tchncs.de
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        16 hours ago

        That’s interesting I hadn’t thought about the JSON angle! Do you mean that you can actually use jq on regular command outputs like ls -l?

        No, you need to be using a tool which has json output as an option. These are becoming more common, but I think still rare among the GNU coreutils. ls output especially is unparseable, as in, there are tons of resources telling people not to do it because it’s pretty much guaranteed to break.

        • elmicha@feddit.org
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          13 hours ago

          There’s jc (CLI tool and python library that converts the output of popular command-line tools, file-types, and common strings to JSON, YAML, or Dictionaries).

          • cyrl@lemmy.world
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            8 hours ago

            You’ve opened a rabbit hole I know I’m just going to fall down… thanks netizen!

  • Obin@feddit.org
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    13 hours ago

    I’m really curious, what’s your favorite shell?

    Emacs eshell+eat

    It essentially reverses the terminal/shell relationship. Here, it’s the shell that starts a terminal session for every command. Eshell is also tightly integrated with Emacs and has access to all the extended functionality. You can use Lisp in one-liners, you can pipe output directly to an emacs buffer, you can write custom commands as lisp functions, full shortcut customization not limited to terminal keys, history search via the completion framework (i.e. consult-history), easy prompt customization, etc.

    There’s also Tramp, which lets you transparently cd into remote hosts via ssh, docker containers, SMB/NFS-shares, archive files, and work with them as if they were normal directories (obviously with limited functionality in some cases, like archives).

    And probably a lot of stuff I’m missing right now.

  • communism@lemmy.ml
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    17 hours ago

    Nushell looks cool but I prefer to stick with the POSIXes so that I know my scripts will always work and syntax always does what I expect it to. I use zsh as a daily driver, and put up with various bashes, ashes, dashes, that come pre-installed with systems I won’t be using loads (e.g. temporary vms).

    • nimpnin@sopuli.xyz
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      16 hours ago

      Always confuses me when people say this. You can use multiple different shells / scripting languages, just as you can use multiple programming languages.

      • communism@lemmy.ml
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        15 hours ago

        I know that. I just don’t have a use case for alternative shells. Zsh works fine for me and I know how it works. I don’t have problems that need fixing, so I don’t need to take the time to learn a new, incompatible shell.

      • elmicha@feddit.org
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        13 hours ago

        Some people work on machines where they are not allowed to install anything.

      • esa@discuss.tchncs.de
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        16 hours ago

        Yeah, there should be a clear separation between scripts, which should have a shebang, and interactive use.

        If a script starts acting oddly after someone does a chsh, then that script is broken. Hopefully people don’t actually distribute broken script files that have some implicit dependency on an unspecified interpreter in this day and age.

      • communism@lemmy.ml
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        15 hours ago

        They have !/bin/sh shebangs. /bin/sh is a symlink, in my case to zsh. I like using one language.

    • phantomwise@lemmy.mlOP
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      17 hours ago

      I don’t really mind having a non-POSIX shell since it doesn’t prevent bash scripts from working, but I get that if you want portability bash is still best since it’ll work mostly anywhere.

      • 4am@lemmy.zip
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        16 hours ago

        If I can shebang nutshell (assuming all the builtins from bash or even sh work) and pass a flag to remove all the fancy UI-for-humans formatting so that piped commands int eh scripts work, then I think this is incredible.

        Yeah having this installed along side other more “standard” shells is fine I guess, but it looks like maybe it has some neat functionality that is more difficult in other shells? I guess I’d need to read up on it more but having a non-interactive mode for machines to read more easily would be a huge plus for it overall. I suppose that depends on what it offers/what it’s trying to accomplish.

  • bastion@feddit.nl
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    15 hours ago

    I like nushell, but I love xonsh. Xonsh is the bastard love child of Python and Bash.

    it can be thought of as:

    • try this statement in Python
    • if there’s an exception, try it in bash.

    Now, that’s not a very accurate description, because the reality is more nuanced, but it allows for things like:

    for file in !(find | grep -i '[.]mp3^'):
        file = Path(file.strip())
        if file != Path('.') and file != file.with_suffix('.mp3'):
        mv @(file) @(file.with_suffix('.mp3'))
    

    Now, there are things in there I wouldn’t bother with normally - like, rather than using mv, I’d just use file.rename(), but the snippet shows a couple of the tools for interaction between xonsh and sh.

    • !(foo) - if writing python, execute foo, and return lines
    • @(foo) - if writing sh, substitute with the value of the foo variable.

    But, either a line is treated in a pyhony way, or in a shelly way - and if a line is shelly, you can reference Python variables or expressions via @(), and if it’s Pythony, you can execute shell code with !() or $(), returning the lines or the exact value, respectively.

    Granted, I love python and like shell well enough, and chimeras are my jam, so go figure.

    • priapus@piefed.social
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      8 hours ago

      Xonsh is also a really cool option. If I used Python more regularly and was more comfortable using it without having to look stuff up, I’d probably use it over Nushell.

      • bastion@feddit.nl
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        11 hours ago

        It’s a superset of python, so valid python should run fine. Imports into your shell are doable, too – for example, I import path.Path in my xonshrc, so it’s always available when I hit the shell. I don’t often have to use Path, because regular shell commands are often more straightforward. But when I do, it’s nice to have it already loaded. Granted, that could get kooky, depending on what you import and execute.

        You can associate/shebang Xonsh with .xsh files, or run “xonsh foo.xsh” - and that works like “bash foo.sh” would, except using xonsh syntax, of course.

        It’s not Bash compatible - copypasta of scripts may not work out. But it’s a good shell with some typical shell semantics.

        there are some great plugins, too - like autovox, which allows you to create python venvs associated with specific subfolders. so, cd myproject does the equivalent of cd myproject; . path/to/venv/bin/activate.

        overall, there definitely is some jank, but it’s a great tool and I love it.

  • Ferk@lemmy.ml
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    18 hours ago

    I prefer getting comfortable with bash, because it’s everywhere and I need it for work anyway (no fancy shells in remote VMs). But you can customize bash a lot to give more colored feedback or even customize the shortcuts with readline. Another one is pwsh (powershell) because it’s by default in Windows machines that (sadly) I sometimes have to use as VMs too. But you can also install it in linux since it’s now open source.

    But if I wanted to experiment personally I’d go for xonsh, it’s a python-based one. So you have all the tools and power of python with terminal convenience.

    • phantomwise@lemmy.mlOP
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      17 hours ago

      Yeah if you need to work on machines with bash it makes sense to stick with it. Sorry you have to work on Windows… how is powershell compared to bash?

      I don’t know python but xonsh seems really cool, especially since like nushell it works on both linux and windows so you don’t have to bother about OS specific syntax

      • Ferk@lemmy.ml
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        16 hours ago

        powershell, in concept, is pretty powerful since it’s integrated with C# and allows dealing with complex data structures as objects too, similar to nushell (though it does not “pretty-print” everything the way nushell does, at least by default).

        But in practice, since I don’t use it as much I never really get used to it and I’m constantly checking how to do things… I’m too used to posix tools and I often end up bringing over a portable subset of msys2, cygwin or similar whenever possible, just so I can use grep, sed, sort, uniq, curl, etc in Windows ^^U …however, for scripts where you have to deal with structured data it’s superior since it has builtin methods for that.