FuncShell – A Haskell-based alternative to awk

FuncShell – A Haskell-based alternative to awk(github.com)

141 points by _iostreamer_ 9 years ago | 38 comments

jaytaylor 9 years ago |

Do any of you know how they got such a beautiful looking shell [0]? I'd love to know if there's a clean way to achieve such a nice result.

[0] https://github.com/iostreamer-X/FuncShell/raw/master/fsh.gif

EDIT

As an aside, FuncShell looks like a beautiful demonstration of how powerful Haskell can be. The source code is terse and clean.

The only oddity I noticed isthe rather large 68MB binary file committed into master in the repository [1]. Why do people do this? Especially on GitHub where there's support for cutting releases with a binary for each targeted platform...

[1] https://github.com/iostreamer-X/FuncShell/blob/master/fsh

redka 9 years ago | |

If you're feeling adventurous you can also try Fish shell with it's collection of themes

https://github.com/oh-my-fish/oh-my-fish/blob/master/docs/Th...

_iostreamer_ 9 years ago | |

>The only oddity I noticed isthe rather large 68MB binary file committed into master in the repository.

Thanks for bringing it to notice. I did this and later realized I can opt for the github release option[0]. I will fix this and the installation url asap.

[0] https://github.com/iostreamer-X/FuncShell/releases

Filligree 9 years ago | | |

Unfortunately, unless you rewrite history, it'll stay in there and bloat the download for anyone who wants to clone the repo.

I don't know if I want to recommend rewriting history or not. But for what it's worth, I'm currently on a cellular connection and couldn't download something this size if I wanted.

rdnetto 9 years ago | | |

You probably want to compress it as well - that can easily reduce the file size by an order of magnitude.

suprfnk 9 years ago | |

That's a pretty standard zsh with oh-my-zsh prompt: https://github.com/robbyrussell/oh-my-zsh

Scroll down a bit and you'll see it.

Though I personally prefer zsh with prezto, because oh-my-zsh feels too bloated and heavy:

https://github.com/sorin-ionescu/prezto

jorvi 9 years ago | | |

Prezto is abandoned. If you absolutely need a framework go for Zim, although I like the simplicity of Zplug and adding plugins or themes as I need them.

cpa 9 years ago | |

Try zsh + oh-my-zsh https://github.com/robbyrussell/oh-my-zsh

I think the gif you linked is the vanilla oh-my-zsh theme.

ujal 9 years ago | |

It doesn't get much purer than pure - https://github.com/sindresorhus/pure

_iostreamer_ 9 years ago | |

Also, the font is Adobe source code pro.

splintercell 9 years ago | |

zsh + oh-my-zsh + agnoster zsh theme + powerline

tyingq 9 years ago |

Similar idea, but uses sqlite to make an awk like utility with sql syntax: https://github.com/dbohdan/sqawk

jaytaylor 9 years ago | |

And just yesterday, people were asking [0] what Tcl is good for! This is a great example.

[0] https://news.ycombinator.com/item?id=14229266

ams6110 9 years ago | |

There's also q, which I've happily used for all sorts of data munging tasks:

https://harelba.github.io/q/

One example from that page:

   ps -ef | q -H "SELECT UID,COUNT(*) cnt FROM - GROUP BY UID ORDER BY cnt DESC LIMIT 3"

rnhmjoj 9 years ago |

What happened to hell[1]? It was apparently destroyed by this commit[2].

[1]: https://www.reddit.com/r/programming/comments/1r7oci/hell_a_...

[2]: https://github.com/chrisdone/hell/commit/f34259e5e92f6edf464...

heinrichhartman 9 years ago |

Similar idea, but uses LUA as inline language: https://github.com/HeinrichHartmann/luawk

``` > printf abc | luawk -p '_:gsub("a","A")'

Abc ```

srean 9 years ago | |

An awk with a luajit backend would be quite interesting.

omaranto 9 years ago |

Similar tools that use Python as the query language:

- The Pyed Piper: https://code.google.com/archive/p/pyp/

- Puffin: https://github.com/kespindler/puffin

gregwebs 9 years ago |

Nice! How do I bring new function into scope though? This looks very similar to hawk, which has documentation on how to add your custom code [1].

Also, there are some nice CLI tools for JSON [2] or CSV [3] specific data.

  [1] https://github.com/gelisam/hawk
  [2] https://stedolan.github.io/jq/manual/
  [3] https://github.com/BurntSushi/xsv/blob/master/README.md

codygman 9 years ago | |

I think hawk should steal the idea of aliasing "|]" personally ;)

baldfat 9 years ago |

I always have mixed feelings on awk alternatives. I find awk to be one of the most underused tools in scripting. Awk has saved me numerous of times.

Now replacing latex with a modern syntax would be awesome!!!

RodericDay 9 years ago | |

I tried to explain to a historian with an open source textbook initiative the basics of latex. As soon as I opened the demo page that had looked nice enough, with him by my side, my heart sank. It's just so far away from being usable by non-technical users.

It's too bad, really.

baldfat 9 years ago | | |

A good theme and sharelatex.com can go a long way to get someone to use it. I usually only get Math Majors to invest in it.

I did almost all my Master Theology papers in it. Just difficult to use different languages. I usually have to use one or all of these Greek, Hebrew, Aramaic, Latin, Danish or German in my papers. Latex didn't make that easy. Actually nothing does.

codewithcheese 9 years ago |

I like how you made this version use pipes instead of being a shell. Do you have any plans to create a new JS version of Awkward using pipes?

_iostreamer_ 9 years ago | |

I understand that this caters to a very specific audience which knows haskell. Hence I plan to support JS as the inline language. I don't want to create a new JS version because I want to learn more of Haskell :p

ilurkedhere 9 years ago |

In typical usage, do you need the type hints much? I saw ":: Float" in there for the df example, for instance.

_iostreamer_ 9 years ago | |

Not really, in the example of df, I was filtering on the basis of size, which is not int usually but a decimal value, hence I had to provide the type hint.

rocqua 9 years ago |

I'm amazed by the powerline-command prompt. Shiny things seem to draw my attention a bit too much.

c0achmcguirk 9 years ago | |

Haha, me too! I want to read an article on getting my zsh prompt to look like that.

baldfat 9 years ago | | |

Windows - https://amreldib.com/blog/CustomizeWindowsCmderPrompt/

zsh - https://gist.githubusercontent.com/agnoster/3712874/raw/c310...

powerline theme on github - https://github.com/banga/powerline-shell