Invoice Generator

Generate professional invoices in Markdown or HTML from simple inputs.

Usage

./generate-invoice.sh \
  --client "Acme Corp" \
  --email "billing@acme.com" \
  --date "2026-02-22" \
  --due "2026-03-22" \
  --item "Web Development|40|150.00" \
  --item "Design Review|5|120.00" \
  --tax 10 \
  --currency USD \
  --invoice-number INV-001 \
  --from "Shelly Labs" \
  --format html

Parameters

Flag	Description	Default
--client	Client name (required)	—
--email	Client email	—
--date	Invoice date	today
--due	Due date	+30 days
--item	"Description|Qty|Rate" (repeatable)	—
--tax	Tax percentage	0
--currency	Currency code	USD
--invoice-number	Invoice ID	INV-{timestamp}
--from	Your name/company	—
--format	md or html	md
--output	Output file path	stdout

Output

• Markdown: Clean table-based invoice
• HTML: Uses template.html — professional, print-ready

Examples

# Quick markdown invoice
./generate-invoice.sh --client "Bob" --item "Consulting|10|100" --format md

# HTML invoice saved to file
./generate-invoice.sh --client "Acme" --item "Dev|40|150" --format html --output invoice.html