Getting a cron error like this from Parallels Plesk Panel?
[: 9: 1: unexpected operator
[: 14: 1: unexpected operator
run-parts: /etc/cron.daily/60sa-update exited with return code 1
Open /etc/cron.daily/60sa-update in your favorite text editor and change the top line from “#!/bin/sh” to “#!/bin/bash“.
Credit for this fix goes to this post at Mammuts FAQ (Spanish).