Manage Service Commands
In RHEL7, the operation of the service command is not the same as CENTOS7 and Rhel6, RHEL6 uses the service, Chkconfig, and so on, while the RHEL7 command is systemctl.
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Managing resources and monitoring processes
This function is similar to the task manager of the win system. Linux also has a variety of processes that keep the computer running. The process has a total of five states:
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This article is from "Deast's Nest" blog, please make sure to keep this source http://xudongdong.blog.51cto.com/1889083/1928271
Linux Learning (that's what Linux should learn) 7