Write readable and maintainable scripts - no cryptic operators, no double-quoting every variable.

jpg-to-png.elv (explainer)
for x [*.jpg] {
  gm convert $x (str:trim-suffix $x .jpg).png
}

Power up your workflows with data structures and functional programming.

update-servers-in-parallel.elv (explainer)
var hosts = [[&name=a &cmd='apt update']
             [&name=b &cmd='pacman -Syu']]
# peach = "parallel each"
peach {|h| ssh root@$h[name] $h[cmd] } $hosts

Catch errors before code executes.

Terminal: elvish (explainer)
~> var project = ~/project
~> rm -rf $projetc/bin
compilation error: variable $projetc not found

Command failures abort execution by default. No more silent failures, no more && everywhere.

Terminal: elvish (explainer)
~> gm convert a.jpg a.png; rm a.jpg
gm convert: Failed to convert a.jpg
Exception: gm exited with 1
  [tty 1]:1:1-22: gm convert a.jpg a.png; rm a.jpg
# "rm a.jpg" is NOT executed

Elvish comes in a single statically linked binary for your laptop, your server, your PC, or your Raspberry Pi.

Terminal: Raspberry Pi
~> wget dl.elv.sh/linux-arm64/elvish-HEAD.tar.gz
~> tar -C /usr/local/bin -xvf elvish-HEAD.tar.gz
elvish
~> elvish

Use Elvish in your CI/CD pipelines. Convenient shell syntax and modern programming language - why not both?

github-actions.yaml
steps:
  - uses: elves/setup-elvish@v1
    with:
      elvish-version: HEAD
  - name: Run something with Elvish
    shell: elvish {0}
    run: |
      echo Running Elvish $version

Press Ctrl-L for directory history, and let Elvish find java/com/acme/project for you.

Terminal: elvish - directory history (more)
~>                                          elf@host
 LOCATION  j
 10 ~/java/com/acme/project/utilities               
 10 ~/java/com/acme/project
 10 /opt/java

Press Ctrl-R for command history. That beautiful ffmpeg command you crafted two months ago is still there.

Terminal: elvish - command history (more)
~>                                          elf@host
 HISTORY (dedup on)  ff                 Ctrl-D dedup
  34 ffmpeg -i input.mp4 -c:v libx264 -c:a aac outpu
  35 ffmpeg -i input.mp4 -vf "transpose=1,scale=640:

Press Ctrl-N for the builtin file manager. Explore directories and files without leaving the comfort of your shell.

Terminal: elvish - file manager (more)
~/elvish>                                   elf@host
 NAVIGATING              Ctrl-H hidden Ctrl-F filter
 bash    1.0-release.m   1.0 has not been released y
 elvis   CONTRIBUTING.  
 zsh     Dockerfile     
         LICENSE        
         Makefile      │
         PACKAGING.md  │
         README.md     │
         SECURITY.md   │