[zsh] add currency converter function

home/.zshrc.local

@@ -138,6 +138,16 @@ function wp() {
     )
 }
 
+function currency() {
+    (
+        amount=${1:-1}
+        fromcurrency=${2:-USD}
+        tocurrency=${3:-EUR}
+        rate=$(curl -s "https://api.exchangeratesapi.io/latest?base=$fromcurrency&symbols=$tocurrency"|jq ".rates.$tocurrency")
+        printf "$amount $fromcurrency: %.02f $tocurrency\n" $(($amount * $rate))
+    )
+}
+
 # Program aliases/env
 
 ## Aliases for programs