Running this command in ShellInABox does what it should:
IP=`curl -s dynamicdns.park-your-domain.com/getip` && curl "https://dynamicdns.park-your-domain.com/update?host=@&domain=example.com&password=examplePassword=$IP"
but putting that exact same line into the "Command" field of scheduled jobs gives this error:
What could be causing this?