#!/bin/bash
s='{"running": 1, "finished": 3, "node_name": "L-2.local", "pending": 0, "status": "ok"}'
echo $s | sed 's/.*"running":[[:space:]]*\([0-9]*\).*/\1/'
IyEvYmluL2Jhc2gKcz0neyJydW5uaW5nIjogMSwgImZpbmlzaGVkIjogMywgIm5vZGVfbmFtZSI6ICJMLTIubG9jYWwiLCAicGVuZGluZyI6IDAsICJzdGF0dXMiOiAib2sifScKZWNobyAkcyB8IHNlZCAncy8uKiJydW5uaW5nIjpbWzpzcGFjZTpdXSpcKFswLTldKlwpLiovXDEvJw==