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53 lines
1.1 KiB
Bash
Executable File
53 lines
1.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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show_help() {
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cat << EOF
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Usage: $(basename "$0") [LOCATION]
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Fetch weather information from wttr.in for the specified location.
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Arguments:
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LOCATION Location to get weather for (default: St Helens)
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Options:
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-h, --help Show this help message
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Examples:
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$(basename "$0") # Get weather for St Helens
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$(basename "$0") "New York" # Get weather for New York
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$(basename "$0") "London,UK" # Get weather for London, UK
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EOF
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}
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urlencode() {
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# urlencode <string>
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old_lc_collate=$LC_COLLATE
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LC_COLLATE=C
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local length="${#1}"
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for ((i = 0; i < length; i++)); do
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local c="${1:i:1}"
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case $c in
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[a-zA-Z0-9.~_-]) printf "%s" "$c" ;;
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*) printf '%%%02X' "'$c" ;;
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esac
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done
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LC_COLLATE=$old_lc_collate
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}
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# Handle help flag
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if [[ "${1:-}" == "-h" ]] || [[ "${1:-}" == "--help" ]]; then
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show_help
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exit 0
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fi
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location=$(urlencode "${1:-St Helens}")
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if ! curl -sf "https://wttr.in/$location"; then
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echo "Error: Failed to fetch weather data. Please check your internet connection or location name." >&2
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exit 1
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fi
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