Bash program to convert currency

Question

I need to make a simple bash currency converter. I need to read information from xml file. I've written xml file and i don't know what to do next. Any ideas?

XML file:

<rates>
<currency>
    <name>Australian dollar</name>
    <rate>2.34</rate>
    <amount>1</amount>
</currency>
<currency>
    <name>GB Pounds</name>
    <rate>4.12</rate>
    <amount>1</amount>
</currency>
<currency>
    <name>Euro</name>
    <rate>3.45</rate>
    <amount>1</amount>
</currency>
<currency>
    <name>USA dollar</name>
    <rate>2.55</rate>
    <amount>1</amount>
</currency>
<currency>
    <name>Russian ruble</name>
    <rate>7.72</rate>
    <amount>100</amount>

How do i use that xml code for this program? Do i copy same line for every rate? Or there is another way to do it? Help — user2939526, Nov 27 '13 at 15:18
Let's say i wanted to print names of every currency in columns? how would i do it? — user2939526, Nov 27 '13 at 15:22

score 0 · Answer 1 · answered Nov 27 '13 at 13:29

0

You can use xmllint to read values from the xml and then make the conversion

euro=$(xmllint --xpath '/rates/currency[name="Euro"]/rate/text()' rates.xml)
echo $euro

answered Nov 27 '13 at 13:29

LMC

10,453
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Ok that helps. But how do i implement it so let's say i want to exchange 7 GB pounds to dollars? – user2939526 Nov 27 '13 at 14:02
this could help http://stackoverflow.com/questions/14879133/currency-converter. And other idea... http://www.shell-fu.org/lister.php?id=821 – LMC Nov 27 '13 at 14:17

score 0 · Answer 2 · answered Nov 27 '13 at 14:42

0

We know that you want to implement it in bash. However if possible, use perl or python for parsing xml. It has good liabraries for such tasks and it's easy to implement also.

answered Nov 27 '13 at 14:42

Mandar Pande

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I'm afraid that's not possible – user2939526 Nov 27 '13 at 15:00

Bash program to convert currency

2 Answers2