mirror of
https://github.com/alexanderepstein/Bash-Snippets
synced 2018-11-08 02:59:35 +01:00
77 lines
2.7 KiB
Bash
Executable File
77 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# Author: Alexander Epstein https://github.com/alexanderepstein
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base=""
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exchangeTo=""
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getBase()
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{
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echo -n "What is the base currency: "
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read -r base
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base=$(echo $base | tr /a-z/ /A-Z/)
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if [[ $base != "AUD" && $base != "BGN" && $base != "BRL" \
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&& $base != "CAD" && $base != "CHF" && $base != "CNY" && $base != "CZK" && $base != "DKK" \
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&& $base != "EUR" && $base != "GBP" && $base != "HKD" && $base != "HRK" && $base != "HUF" \
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&& $base != "IDR" && $base != "ILS" && $base != "INR" && $base != "JPY" && $base != "KRW" \
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&& $base != "MXN" && $base != "MYR" && $base != "NOK" && $base != "NZD" && $base != "PHP" \
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&& $base != "PLN" && $base != "RON" && $base != "RUB" && $base != "SEK" && $base != "SGD" \
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&& $base != "THB" && $base != "TRY" && $base != "USD" && $base != "ZAR" ]];then
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unset base
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echo "Invalid base currency"
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getBase
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fi
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}
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getExchangeTo()
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{
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echo -n "What currency to exchange to: "
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read -r exchangeTo
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exchangeTo=$(echo $exchangeTo | tr /a-z/ /A-Z/)
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if [[ $exchangeTo != "AUD" && $exchangeTo != "BGN" && $exchangeTo != "BRL" \
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&& $exchangeTo != "CAD" && $exchangeTo != "CHF" && $exchangeTo != "CNY" && $exchangeTo != "CZK" && $exchangeTo != "DKK" \
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&& $exchangeTo != "EUR" && $exchangeTo != "GBP" && $exchangeTo != "HKD" && $exchangeTo != "HRK" && $exchangeTo != "HUF" \
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&& $exchangeTo != "IDR" && $exchangeTo != "ILS" && $exchangeTo != "INR" && $exchangeTo != "JPY" && $exchangeTo != "KRW" \
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&& $exchangeTo != "MXN" && $exchangeTo != "MYR" && $exchangeTo != "NOK" && $exchangeTo != "NZD" && $exchangeTo != "PHP" \
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&& $exchangeTo != "PLN" && $exchangeTo != "RON" && $exchangeTo != "RUB" && $exchangeTo != "SEK" && $exchangeTo != "SGD" \
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&& $exchangeTo != "THB" && $exchangeTo != "TRY" && $exchangeTo != "USD" && $exchangeTo != "ZAR" ]];then
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echo "Invalid exchange currency"
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unset getExchangeTo
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getExchangeTo
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fi
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}
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getAmount()
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{
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echo -n "What is the amount being exchanged: "
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read -r amount
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if [[ ! "$amount" =~ ^[0-9]+(\.[0-9]+)?$ ]]
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then
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echo "The amount has to be a number"
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unset amount
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getAmount
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fi
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}
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checkInternet()
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{
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echo -e "GET http://google.com HTTP/1.0\n\n" | nc google.com 80 > /dev/null 2>&1
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if [ $? -eq 0 ]; then
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return 0
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else
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echo "Error: no active internet connection" >&2
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return 1
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fi
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}
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convertCurrency()
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{
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exchangeRate=$(curl -s "http://api.fixer.io/latest?base=$base&symbols=$exchangeTo" | grep -Eo "[0-9][.][0-9]*") > /dev/null
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exchangeAmount=$(echo "$exchangeRate * $amount" | bc )
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echo "$amount $base is equal to $exchangeAmount $exchangeTo"
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}
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checkInternet || exit 1
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getBase
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getExchangeTo
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getAmount
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convertCurrency
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