uptime

# Uptime System and website uptime monitor. Check system load, test URL reachability with timing, log uptime history, and set up outage alerts. ## Commands | Command | Description | |---------|-------------| | `uptime status` | Show system uptime, load average, CPU count, and logged-in users | | `uptime check <url>` | Check if a URL is reachable (HTTP status, connect time, TTFB) | | `uptime log` | Log current system uptime snapshot to `~/.uptime-monitor/uptime.log` | | `uptime history` | Show uptime log history (last 30 entries) | | `uptime alert <url> <email>` | Check URL and send email alert if down | | `uptime since` | Show system boot time | | `uptime multi <url1> <url2> ...` | Check multiple URLs at once with summary | | `uptime version` | Show version | ## Examples ```bash uptime status # → uptime, load, users, hostname uptime check [Technical Reference] # → HTTP 200, connect 0.1s, TTFB 0.2s uptime log # → saves snapshot to log file uptime history # → shows recent log entries uptime alert [Technical Reference] admin@example.com # → alerts if down uptime since # → boot time uptime multi [Technical Reference] https://github.com # → batch check ``` ## Requirements - `/proc/uptime`, `/proc/loadavg` (Linux) - `curl` (for URL checks) - `mail` (optional, for email alerts)