| 1 | #! /bin/bash |
| 2 | |
| 3 | set -e |
| 4 | |
| 5 | STATION_ID="$1" # ICAO designator. e.g. KJFK, KBOS |
| 6 | |
| 7 | FILE_METAR_DECODED="$HOME/var/run/metar-${STATION_ID}-decoded" |
| 8 | FILE_TEMP_FAHRENHEIT="${FILE_METAR_DECODED}-temp-fahrenheit" |
| 9 | FILE_TEMP_CELSIUS="${FILE_METAR_DECODED}-temp-celsius" |
| 10 | |
| 11 | (metar -d "$STATION_ID" 2>&1) > $FILE_METAR_DECODED # TODO: Better error handling |
| 12 | |
| 13 | awk \ |
| 14 | -v file_fahrenheit="$FILE_TEMP_FAHRENHEIT" \ |
| 15 | -v file_celsius="$FILE_TEMP_CELSIUS" \ |
| 16 | ' |
| 17 | /METAR pattern not found in NOAA data/ { |
| 18 | failures++ |
| 19 | } |
| 20 | |
| 21 | /^Temperature/ { |
| 22 | celsius = $3; |
| 23 | fahrenheit = (celsius * (9 / 5)) + 32; |
| 24 | } |
| 25 | |
| 26 | END { |
| 27 | if (failures > 0) { |
| 28 | print "--" > file_fahrenheit |
| 29 | print "--" > file_celsius |
| 30 | } else { |
| 31 | print fahrenheit > file_fahrenheit |
| 32 | print celsius > file_celsius |
| 33 | } |
| 34 | }' \ |
| 35 | $FILE_METAR_DECODED |