Check the current price of Bitcoin (jq version, defines a function)

btc() { echo "1 BTC = $(curl -s$1.json | jq .bpi.\"$1\".rate | tr -d \"\"\") $1"; }
The only pre-requisite is jq (and curl, obviously). The other version used grep, but jq is much more suited to JSON parsing than that.
Sample Output
$ btc USD
1 BTC = 232.0986 USD
$ btc GBP
1 BTC = 149.4399 GBP

2015-09-19 02:49:30

2 Alternatives + Submit Alt

What Others Think

1. The outer quotes can be removed using jq's -r command-line option. 2. It would be better to pass $1 to jq as a command-line variable, e.g. using the --args command-line option. So the jq portion of the snippet would be: jq -r --arg c "$1" '.bpi|.[$c]|.rate'
pkoppstein · 84 weeks and 2 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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