Help & Version

Print program help

Print global help information by running:

zvm --help

Print help information about a specific command or subcommand.

zvm list --help

NAME:
   zvm list - list installed Zig versions. Flag `--all` to see remote options

USAGE:
   zvm list [command options] [arguments...]

OPTIONS:
   --all, -a   list remote Zig versions available for download, based on your version map (default: false)
   --vmu       list set version maps (default: false)
   --help, -h  show help

Print program version

zvm --version
zvm version        # same output — added in v0.8.19

Both forms print the version of ZVM you have installed. The version subcommand was added for tooling and shells that parse subcommands but not global flags.

Shell Completion

ZVM can emit a completion script for bash, zsh, fish, or pwsh (PowerShell). The script is generated from ZVM’s live command tree, so it always reflects the commands and flags of the zvm binary you ran it with.

zvm completion bash
zvm completion zsh
zvm completion fish
zvm completion pwsh

Bash

Source the script for the current session:

source <(zvm completion bash)

To load it on every new shell, write it to bash-completion’s load path:

zvm completion bash > /etc/bash_completion.d/zvm           # system-wide
# or for a single user:
zvm completion bash > ~/.local/share/bash-completion/completions/zvm

Zsh

Place the script somewhere on your $fpath as _zvm:

zvm completion zsh > "${fpath[1]}/_zvm"

Then ensure compinit is running in your ~/.zshrc:

autoload -Uz compinit && compinit

Fish

zvm completion fish > ~/.config/fish/completions/zvm.fish

Fish picks this up automatically on the next shell.

PowerShell

zvm completion pwsh > $PROFILE.CurrentUserAllHosts\..\zvm.ps1

Then dot-source the file from your PowerShell profile ($PROFILE):

. "$HOME\Documents\PowerShell\zvm.ps1"