bin/khatus_update_weather

   1 #! /bin/bash
   2
   3 set -e
   4
   5 FILE_METAR_DECODED="$HOME/var/run/metar-KJFK-decoded"
   6 FILE_TEMP_FAHRENHEIT="${FILE_METAR_DECODED}-temp-fahrenheit"
   7
   8 (metar -d KJFK 2>&1) > $FILE_METAR_DECODED  # TODO: Better error handling
   9
  10 awk '
  11     /METAR pattern not found in NOAA data/ {
  12         failures++
  13     }
  14
  15     /^Temperature/ {
  16         celsius = $3;
  17         fahrenheit = (celsius * (9 / 5)) + 32;
  18     }
  19
  20     END {
  21         if (failures > 0) {
  22             print "--";
  23         } else {
  24             print fahrenheit;
  25         }
  26     }' \
  27     $FILE_METAR_DECODED \
  28 > $FILE_TEMP_FAHRENHEIT