simple wrapper function around http://wttr.io to get sensible defaults

wttr.sh

#!/usr/bin/env bash
# simple wrapper function around http://wttr.io to get sensible defaults
# easily modified by changing the defaults and/or last parameters in the url

function wttr() {
  USAGE="
  Usage: wttr [OPTIONS]

  Options:
    -c <city>             city name, double words with +, eg. new+york
    -d <number>           number of days to show, 0-3
    -l <language>         choose language, use wttr -w for options
    -m                    show moon info instead of weather
    -h                    print this help
    -w                    curl wttr:help
    -r                    region weather (experimental)
    -g                    graph view (experimental)
  "
  # default values
  CITY="Tampere"
  LANG="fi"
  DAYS=1
  NARROW='n'
  # If width > 125 cols, automatic wide mode
  (( $(tput cols) > 125 )) && NARROW=''

  OPTIND=1    # OPTIND is not automatically reset

  while getopts "c:d:l:mhwrg" OPTNAME; do
    case "$OPTNAME" in
      c)
        CITY=${OPTARG}
        ;;
      d)
        DAYS=${OPTARG}
        ;;
      l)
        LANG=${OPTARG}
        ;;
      m)
        curl -s "http://${LANG}.wttr.in/moon?F"
        return 0
        ;;
      h)
        echo "$USAGE"
        return 0
        ;;
      w)
        curl -s "http://wttr.in/:help"
        return 0
        ;;
      r)
        curl -s "v3.wttr.in/${CITY}.sxl?F"
        return 0
        ;;
      g)
        curl -s "v2.wttr.in/${CITY}?F"
        return 0
        ;;
      *)
        echo "$USAGE"
        return 1
        ;;
    esac
  done

  curl -s "http://${LANG}.wttr.in/${CITY}?${DAYS}${NARROW}FMq"
}

wttr "$@"