使用rpm命令从redhat/centos系统盘安装计划任务程序crontab

一、准备文件

将光盘centos/redhat放入光驱，进入Packages目录，或者将以下文件复制到要安装的系统中：

(1/5): cronie-1.4.4-15.el6.x86_64.rpm

(2/5): cronie-anacron-1.4.4-15.el6.x86_64.rpm

(3/5): crontabs-1.10-33.el6.noarch.rpm 

(4/5): procmail-3.22-25.1.el6_5.1.x86_64.rpm

(5/5): sendmail-8.14.4-9.el6.x86_64.rpm

二、开始安装

[root@mysql1 crontabs]# rpm -ivh procmail-3.22-25.1.el6.x86_64.rpm
warning: procmail-3.22-25.1.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key                                                                                      ID fd431d51: NOKEY
Preparing...                ########################################### [100%]
   1:procmail               ########################################### [100%]
[root@mysql1 crontabs]# rpm -ivh sendmail-8.14.4-8.el6.x86_64.rpm
warning: sendmail-8.14.4-8.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key I                                                                                     D fd431d51: NOKEY
Preparing...                ########################################### [100%]
   1:sendmail               ########################################### [100%]
[root@mysql1 crontabs]# rpm -ivh cronie-1.4.4-12.el6.x86_64.rpm
warning: cronie-1.4.4-12.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID                                                                                      fd431d51: NOKEY
error: Failed dependencies:
        dailyjobs is needed by cronie-1.4.4-12.el6.x86_64
[root@mysql1 crontabs]# rpm -ivh cronie-1.4.4-12.el6.x86_64.rpm --nodeps
warning: cronie-1.4.4-12.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID                                                                                      fd431d51: NOKEY
Preparing...                ########################################### [100%]
   1:cronie                 ########################################### [100%]
[root@mysql1 crontabs]# rpm -ivh crontabs-1.10-33.el6.noarch.rpm
warning: crontabs-1.10-33.el6.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID                                                                                      fd431d51: NOKEY
Preparing...                ########################################### [100%]
   1:crontabs               ########################################### [100%]
[root@mysql1 crontabs]# rpm -ivh cronie-anacron-1.4.4-12.el6.x86_64.rpm
warning: cronie-anacron-1.4.4-12.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature,                                                                                      key ID fd431d51: NOKEY
Preparing...                ########################################### [100%]
   1:cronie-anacron         ########################################### [100%]
[root@mysql1 crontabs]# crontab -l
no crontab for root
[root@mysql1 crontabs]# crontab -e
no crontab for root - using an empty one
crontab: no changes made to crontab
[root@mysql1 crontabs]# crontab -e
no crontab for root - using an empty one
crontab: installing new crontab
//查看是否是开机启动
[root@mysql1 crontabs]# chkconfig --list | grep cron
crond           0:off   1:off   2:on    3:on    4:on    5:on    6:off
[root@mysql1 crontabs]# chkconfig --list crond
crond           0:off   1:off   2:on    3:on    4:on    5:on    6:off

 三、扩展阅读

crontab配置