coincap.io coin price lookup

coin.sh

#!/bin/bash 
if [ -z "$1"  ]; 
then
 COINS=`cat ~/.coins`
 PARAM="ids=$COINS"
else
 echo $1
 PARAM="search=$1"
fi
DATA=`curl --silent "https://api.coincap.io/v2/assets?$PARAM"` 
echo "$DATA" | jq -r 'def leftpad(str; len): str + (" " * (len - (str|length)));
          def numpad(str; dec; frac): (str|index(".")) as $dot | " " * (dec-$dot) + str[0:$dot+frac+1];
		      def longest(path): map(path|length) | max;
		      def biggest(path): map(path | index(".")) | max;
		      .data | longest(.symbol) as $sym_max | 
			      longest(.id) as $id_max | 
			      biggest(.priceUsd) as $price_max | 
			      .[] | 
			      [leftpad(.symbol; $sym_max), 
		               leftpad(.id; $id_max),
			       "$" + numpad(.priceUsd; $price_max; 5)
			      ] 
			      | join (" ")'

sample run

$ cat ~/.coins
bitcoin,ethereum
$ coin
bitcoin,ethereum
BTC bitcoin  $11540.53330
ETH ethereum $  386.07154