I have typed for user in $(cut -f1 -d: /etc/passwd); do crontab -u $user -l; doneAnd that sayno crontab for rootno crontab for daemon...no crontab for apache2and i got very often You have new mail in /var/mail/root messagewhen i read there are all the sameFrom root@lxc2014.localdomain  Wed Aug  2 15:40:02 2017Return-Path: <root@lxc2014.localdomain>X-Original-To: rootDelivered-To: root@lxc2014.localdomainReceived: by lxc2014.localdomain (Postfix, from userid 0)        id 03E571D666; Wed,  2 Aug 2017 15:40:02 +0000 (UTC)From: root@lxc2014.localdomain (Cron Daemon)To: root@lxc2014.localdomainSubject: Cron <root@lxc2014> /dev/.x;^Mno crontab for rootMIME-Version: 1.0Content-Type: text/plain; charset=US-ASCIIContent-Transfer-Encoding: 8bitX-Cron-Env: <SHELL=/bin/sh>X-Cron-Env: <HOME=/root>X-Cron-Env: <PATH=/usr/bin:/bin>X-Cron-Env: <LOGNAME=root>Message-Id: <20170802154002.03E571D666@lxc2014.localdomain>Date: Wed,  2 Aug 2017 15:40:02 +0000 (UTC)/bin/sh: 1: ^Mno: not foundI know that ^M is \r brut why cron search this file...
why I get this /bin/sh: 1: ^Mno: not found error
linux;logs;cron