rtk_stats

#!/bin/sh
rtk gain -f json 2>/dev/null | awk -F'[:,}]' '
  /"total_input"/  { input=$2+0 }
  /"total_saved"/  { saved=$2+0 }
  /"avg_savings_pct"/ { pct=$2+0 }
  END {
    if (input > 0) {
      fmt_input = (input >= 1000) ? sprintf("%.1fK", input/1000) : input
      fmt_saved = (saved >= 1000) ? sprintf("%.1fK", saved/1000) : saved
      printf "RTK: %s/%s saved (%.0f%%)\n", fmt_saved, fmt_input, pct
    } else {
      print "RTK: no data"
    }
  }'