env-compare-cli

Compare .env files to find missing, extra, and different variables.

Installation

npm install -g env-compare-cli

Usage

# Basic comparison
env-compare .env .env.example

# Show actual values in diff
env-compare .env .env.production --values

# JSON output (for scripting)
env-compare .env .env.staging --json

# Generate merged file to stdout
env-compare .env .env.example --sync

# CI usage (exits with code 1 if differences found)
env-compare .env.example .env || echo "Environment mismatch!"

Options

Flag	Description
--values	Show actual values in the comparison
--json	Output results as JSON
--sync	Print a merged env output to stdout
-V	Show version
-h	Show help

Output

• 🔴 Missing — variables in file1 but not in file2
• 🟡 Extra — variables in file2 but not in file1
• 🔵 Different — same key, different value

Exit Codes

• 0 — files are identical
• 1 — differences found (CI-friendly)

License

MIT