Кронтаб:
*/2* * * * * root /root/server/scripts/restart.sh
Скрипт:
#!/bin/sh
#Авторестарт  серверов
echo  "Начало перезагрузки всех серверов."
sleep 2
screen -x bedwars -X stuff "stop"
screen -x bedwars -X eval "stuff \015"
sleep 2
echo  "Перезагрузка завершена!"


Кронтаб 2:
"/3 * * * * root sh /root/server/scripts/restart.sh"
Ошибка:
From [email protected]  Wed Oct  2 18:33:01 2019
Return-Path: <[email protected]>
X-Original-To: root
Delivered-To: [email protected]
Received: by HOSTIAN.localdomain (Postfix, from userid 0)
	id 98D92C3F1D; Wed,  2 Oct 2019 18:33:01 +0000 (UTC)
From: [email protected] (Cron Daemon)
To: [email protected]
Subject: Cron <root@HOSTIAN> root sh /root/server/scripts/restart.sh
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/root>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=root>
Message-Id: <[email protected]>
Date: Wed,  2 Oct 2019 18:33:01 +0000 (UTC)

/bin/sh: 1: root: not found