#!/bin/bash
# uptime.sh — uptime in seconds + days.
URL='YOUR_URL/uptime'
SECS=$(cat /proc/uptime | awk '{print int($1)}')
DAYS=$(awk "BEGIN { printf \"%.2f\", $SECS / 86400 }")
curl -fsS -m 15 -H 'Content-Type: application/json' \
  --data-raw "{\"hostname\": \"$(hostname)\", \"uptime_seconds\": $SECS, \"uptime_days\": $DAYS}" \
  "$URL"