クレジットカード番号には法則があり、先頭6桁でカードの種類を識別、分類することができる。
詳細はISO/IEC 7812で規定されている。
ISO/IEC 7812 - Wikipedia https://ja.wikipedia.org/wiki/ISO/IEC_7812
先頭の6桁を銀行識別番号（Bank Identification Number、略称:BIN）ないしは発行者識別番号（Issuer Identification Number、略称:IIN）と呼び、この先頭6桁でカード発行会社(イシュア、issuer)が判るようになっている。
| #!/bin/bash | |
| # tmux-claude.sh — Claude Code usage for tmux status bar | |
| # Compact 5-char progress bars with color coding | |
| # Format: ██░░░22% █░░░░14% | |
| CACHE="/tmp/tmux-claude-cache" | |
| LOCK="/tmp/tmux-claude-lock" | |
| CREDS="$HOME/.claude/.credentials.json" | |
| MAX_AGE=300 |
| #!/usr/bin/ruby | |
| # NG | |
| 100.times do |i| | |
| number_s = sprintf("%05d", i).to_s | |
| begin | |
| puts sprintf("%05d", number_s) | |
| rescue => e | |
| puts e |
| #!/bin/bash | |
| # Please ensure GOOGLE_API_KEY is set. | |
| # The key can be found: https://aistudio.google.com/apps | |
| # Create test.xlsx file | |
| echo "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 |
| #!/usr/bin/env python3 | |
| # -*- coding: utf-8 -*- | |
| """ | |
| 自転車エアロ性能分析スクリプト | |
| Aeroad vs Tarmac の皇居4周データ比較 | |
| """ | |
| import fitparse | |
| import pandas as pd | |
| import numpy as np |
| #!/usr/bin/env python3 | |
| """ | |
| FIT File Analyzer - Gear and Metrics Visualization | |
| Analyzes FIT files to extract and visualize gear data and performance metrics | |
| """ | |
| import fitparse | |
| import pandas as pd | |
| import matplotlib.pyplot as plt | |
| import matplotlib.dates as mdates |
| diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml | |
| new file mode 100644 | |
| index 0000000000..1bd47c441b | |
| --- /dev/null | |
| +++ b/.github/workflows/claude-code-review.yml | |
| @@ -0,0 +1,76 @@ | |
| +name: Claude Code Review | |
| + | |
| +on: | |
| + pull_request: |
| % aws ec2 describe-availability-zones | |
| { | |
| "AvailabilityZones": [ | |
| { | |
| "State": "available", | |
| "Messages": [], | |
| "RegionName": "ap-northeast-1", | |
| "ZoneName": "ap-northeast-1a", | |
| "ZoneId": "apne1-az4" | |
| }, |
| mkdir -p ~/claude/commands | |
| curl https://raw.githubusercontent.com/abagames/slash-criticalthink/refs/heads/master/criticalthink.md > ~/.claude/commands/criticalthink.md |
