overthinkos/alias

Alias - Command Aliases

Overview

ov alias creates distrobox-style wrapper scripts in ~/.local/bin/ that transparently run commands inside containers. Typing the alias name on the host executes the command inside the container via ov shell.

Quick Reference

| Action | Command | Description | |--------|---------|-------------| | Install defaults | ov alias install <image> | Create wrappers from layer/image config | | Uninstall all | ov alias uninstall <image> | Remove all wrappers for an image | | Add manually | ov alias add <name> <image> [command] | Create a single wrapper | | Remove one | ov alias remove <name> | Remove a single wrapper | | List all | ov alias list | Show all installed aliases |

How It Works

ov alias install openclaw     # Creates ~/.local/bin/openclaw
openclaw                      # Runs inside container transparently
ov alias uninstall openclaw   # Removes wrapper

Wrapper Script Format

ov alias add / ov alias install writes shell scripts to ~/.local/bin/:

#!/bin/sh
# ov-alias
# image: openclaw
# command: openclaw
_ov_q(){ printf "'"; printf '%s' "$1" | sed "s/'/'\\\\''/g"; printf "' "; }
c="openclaw"; for a in "$@"; do c="$c $(_ov_q "$a")"; done
exec ov shell openclaw -c "$c"

Key details:

• The # ov-alias marker enables safe list/delete scanning
• ov alias remove verifies the marker before deleting
• The _ov_q() helper properly single-quotes each argument (POSIX sh compatible)
• Arguments are forwarded to ov shell <image> -c "<command> <args>"

Declaration

In layer.yml

Layer aliases require both name and command:

aliases:
  - name: ollama
    command: ollama
  - name: ollama-run
    command: "ollama run"

In image.yml

Image-level aliases default command to name if omitted. Image-level aliases override layer aliases with the same name.

images:
  my-app:
    aliases:
      - name: myapp          # command defaults to "myapp"
      - name: myctl
        command: "myapp ctl"

Collection

CollectImageAliases() gathers aliases from the image's own layers (in dependency order) plus image-level config. No base chain traversal -- aliases are leaf-image specific (unlike volumes).

Source: ov/alias.go, ov/layers.go (AliasYAML, HasAliases, Aliases()).

Commands

Install All Aliases for an Image

ov alias install openclaw
# Created alias: openclaw -> openclaw (in openclaw)

Installs all aliases declared in the image's layers and image config.

Uninstall All Aliases for an Image

ov alias uninstall openclaw
# Removed alias: openclaw

Removes all wrapper scripts that reference the image.

Add a Single Alias

ov alias add mycommand my-image                   # command = mycommand
ov alias add mycommand my-image "custom command"   # explicit command

Remove a Single Alias

ov alias remove mycommand

Only removes if the file contains the # ov-alias marker.

List All Aliases

ov alias list
# NAME         IMAGE        COMMAND
# openclaw     openclaw     openclaw
# ollama       ollama       ollama

Scans ~/.local/bin/ for files with the # ov-alias marker.

Validation Rules

• Layer aliases require both name and command
• Alias names must match ^[a-zA-Z0-9][a-zA-Z0-9._-]*$
• Duplicate alias names within an image are errors
• Image-level alias command defaults to name if omitted

Cross-References

• /ov:pull -- Prerequisite: fetch the image into local storage; handles remote refs (@github.com/...) and the ErrImageNotLocal recovery path

• /ov:shell -- How aliases execute commands via ov shell -c

• /ov:layer -- Declaring aliases in layer.yml

• /ov:image -- Image-level alias overrides

When to Use This Skill

MUST be invoked when the task involves host command aliases, ov alias commands, or wrapper scripts that run inside containers. Invoke this skill BEFORE reading source code or launching Explore agents.

Workflow position: Post-deployment. Use after a service is running to create host command shortcuts.