CLI Commands

Place scripts in a folder. After writing, run:

• •wmill script generate-metadata - Generate .script.yaml and .lock files
• •wmill sync push - Deploy to Windmill

Use wmill resource-type list --schema to discover available resource types.

Bash

Structure

Do not include #!/bin/bash. Arguments are obtained as positional parameters:

# Get arguments
var1="$1"
var2="$2"

echo "Processing $var1 and $var2"

# Return JSON by echoing to stdout
echo "{\"result\": \"$var1\", \"count\": $var2}"

Important:

• •Do not include shebang (#!/bin/bash)
• •Arguments are always strings
• •Access with $1, $2, etc.

Output

The script output is captured as the result. For structured data, output valid JSON:

name="$1"
count="$2"

# Output JSON result
cat << EOF
{
  "name": "$name",
  "count": $count,
  "timestamp": "$(date -Iseconds)"
}
EOF

Environment Variables

Environment variables set in Windmill are available:

# Access environment variable
echo "Workspace: $WM_WORKSPACE"
echo "Job ID: $WM_JOB_ID"