Script bash para predicciones meteorológicas.

En este articulo creamos un script bash con el cual podremos visualizar las predicciones meteorológicas (el tiempo) en nuestra consola / terminal.

Las posibilidades de este script son infinitas si tienes un poco de imaginación, y todo gracias al gran trabajo de Igor Chubin.

Lo vemos…

 

Creamos el archivo.

nano eltiempo.sh

Copia y pega el siguiente código:

#!/usr/bin/env bash

locale=$(echo $LANG | cut -c1-2)
unset configuredClient
if [[ $(echo $locale | grep -Eo "[a-z A-Z]*" | wc -c) != 3 ]]; then locale="es"; fi

getConfiguredClient()
{
  if command -v curl &>/dev/null; then
    configuredClient="curl"
  elif command -v wget &>/dev/null; then
    configuredClient="wget"
  elif command -v http &>/dev/null; then
    configuredClient="httpie"
  elif command -v fetch &>/dev/null; then
    configuredClient="fetch"
  else
    echo "Error: This tool reqires either curl, wget, httpie or fetch to be installed\." >&2
    return 1
  fi
}

httpGet()
{
  case "$configuredClient" in
    curl)  curl -A curl -s "$@" ;;
    wget)  wget -qO- "$@" ;;
    httpie) http -b GET "$@" ;;
    fetch) fetch -q "$@" ;;
  esac
}

getIPWeather()
{
  country=$(httpGet ipinfo.io/country) > /dev/null
  if [[ $country == "US" ]]; then
    city=$(httpGet ipinfo.io/city) > /dev/null
    region=$(httpGet ipinfo.io/region) > /dev/null
    if [[ $(echo $region | wc -w) == 2 ]];then
      region=$(echo $region | grep -Eo "[A-Z]*" | tr -d "[:space:]")
    fi
    httpGet $locale.wttr.in/$city,$region$1
  else
    location=$(httpGet ipinfo.io/loc) > /dev/null
    httpGet $locale.wttr.in/$location$1
  fi
}

getLocationWeather()
{
  args=$(echo "$@" | tr " " + )
  httpGet $locale.wttr.in/${args}
}

checkInternet()
{
  httpGet github.com > /dev/null 2>&1 || { echo "Error: no active internet connection" >&2; return 1; }
}

usage()
{
  cat <<EOF
Weather
Description: Provides a 3 day forecast on your current location or a specified location.
  With no flags Weather will default to your current location.
Usage: weather or weather [flag] or weather [country] or weather [city] [state]
  weather [i][M] get weather in imperial units, optional M means windspeed in m/s
  weather [m][M] get weather in metric units, optional M means windspeed in m/s
  weather [Moon] grabs the phase of the moon
  -u  Update Bash-Snippet Tools
  -h  Show the help
  -v  Get the tool version
Examples:
  weather
  weather Paris m
  weather Tokyo
  weather Moon
  weather mM
EOF
}

getConfiguredClient || exit 1

while getopts "uvh" opt; do
  case "$opt" in
    \?) echo "Invalid option: -$OPTARG" >&2
        exit 1
        ;;
    h)  usage
        exit 0
        ;;
    v)  echo "Version $currentVersion"
        exit 0
        ;;
    u)  checkInternet || exit 1
        update || exit 1
        exit 0
        ;;
    :)  echo "Option -$OPTARG requires an argument." >&2
        exit 1
        ;;
  esac
done

if [[ $# == "0" ]]; then
  checkInternet || exit 1
  getIPWeather || exit 1
  exit 0
elif [[ $1 == "help" || $1 == ":help" ]]; then
  usage
  exit 0
elif [[ $1 == "update" ]]; then
  checkInternet || exit 1
  update || exit 1
  exit 0
fi

checkInternet || exit 1
if [[ $1 == "m" ]]; then
  getIPWeather "?m" || exit 1
elif [[ "${@: -1}" == "m" ]];then
  args=$( echo "${@:1:(($# - 1))}" ?m | sed s/" "//g)
  getLocationWeather $args || exit 1
elif [[ $1 == "M" ]]; then
  getIPWeather "?M" || exit 1
elif [[ "${@: -1}" == "M" ]];then
  args=$( echo "${@:1:(($# - 1))}" ?M | sed s/" "//g)
  getLocationWeather $args || exit 1
elif [[ $1 == "mM" || $1 == "Mm" ]]; then
  getIPWeather "?m?M" || exit 1
elif [[ "${@: -1}" == "mM" || "${@:-1}" == "Mm" ]];then
  args=$( echo "${@:1:(($# - 1))}" ?m?M | sed s/" "//g)
  getLocationWeather $args || exit 1
elif [[ $1 == "iM" || $1 == "Mi" ]]; then
  getIPWeather "?u?M" || exit 1
elif [[ "${@: -1}" == "iM" || "${@:-1}" == "Mi" ]];then
  args=$( echo "${@:1:(($# - 1))}" ?u?M | sed s/" "//g)
  getLocationWeather $args || exit 1
elif [[ $1 == "i" ]]; then
  getIPWeather "?u" || exit 1
elif [[ "${@: -1}" == "i" ]];then
  args=$( echo "${@:1:(($# - 1))}" ?u | sed s/" "//g)
  getLocationWeather $args || exit 1
else
  getLocationWeather "$@" || exit 1
fi

 

Guarda el archivo y cierra el editor.

Lo puedes ejecutar, con:

bash eltiempo.sh

El script detectara automáticamente tu localización (por IP), y te ofrecerá en la consola de manera gráfica la predicción meteorológica.

Debo decir que dependiendo de tu situación, no siempre puede identificar la población, en ese caso ofrecerá los datos desde tu longitud y latitud.

Vemos los dos ejemplos de salida…

Con población Monzón, Huesca (España):

 

Con latitud y longitud (otra localización desde Ucrania, donde no identifica la población).

 

Espero te resulte útil.