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Project-Readme for this version

A friendly and expressive Unix shell

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User groups: Gitter Telegram Group #elvish on freenode

Developer groups: Gitter Telegram Group #elvish on freenode

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Elvish is a cross-platform shell suitable for both interactive use and scripting. It features a full-fledged, non-POSIX-shell programming language with advanced features like namespacing and anonymous functions, and a powerful, fully programmable user interface that works well out of the box.

… which is not 100% true yet. Elvish is already suitable for most daily interactive use, but it is not yet complete. Contributions are more than welcome!

This README documents the development aspect of Elvish. Other information is to be found on the website.

Building Elvish

To build Elvish, you need

  • A Go toolchain >= 1.8.

  • Linux (with x86 or amd64 CPU) or macOS (with reasonably new hardware).

    It’s quite likely that Elvish works on BSDs and other POSIX operating systems, or other CPU architectures; this is not guaranteed due to the lack of good CI support and developers who use such OSes. Pull requests are welcome.

    Windows support is experimental.

The Correct Way

Elvish is a go-gettable package. To build Elvish, first set up your Go workspace according to How To Write Go Code, and then run

go get github.com/elves/elvish

The Lazy Way

Here is something you can copy-paste into your terminal:

export GOPATH=$HOME/go
export PATH=$PATH:$GOPATH/bin
mkdir -p $GOPATH

go get github.com/elves/elvish

for f in ~/.bashrc ~/.zshrc; do
    printf 'export %s=%s\n' GOPATH '$HOME/go' PATH '$PATH:$GOPATH/bin' >> $f
done

The scripts sets up the Go workspace and runs go get for you. It assumes that you have a working Go installation and currently use bash or zsh.

The Homebrew Way

Users of macOS can build Elvish using Homebrew:

brew install --HEAD elvish

Name

In roguelikes, items made by the elves have a reputation of high quality. These are usually called elven items, but I chose “elvish” because it ends with “sh”, a long tradition of Unix shells. It also rhymes with fish, one of the shells that influenced the philosophy of Elvish.

The word “Elvish” should be capitalized like a proper noun. However, when referring to the elvish command, use it in lower case with fixed-width font.

Whoever practices the Elvish way by either contributing to it or simply using it is called an Elf. (You might have guessed this from the name of the GitHub organization.) The official adjective for Elvish (as in “Pythonic” for Python, “Rubyesque” for Ruby) is Elven.