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step1： /usr/local/qcloud/YunJing/YDDelCrontab.sh
step2： /usr/local/qcloud/YunJing/uninst.sh
step3: /usr/local/qcloud/stargate/admin/delcrontab.sh
step4: /usr/local/qcloud/stargate/admin/uninstall.sh
step5: /usr/local/qcloud/monitor/barad/admin/uninstall.sh
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hostnamectl 系统信息
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~ 家目录符号 cd ~
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putty无密码登录CentOS https://www.tecmint.com/ssh-passwordless-login-with-putty/
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systemctl enable sshd
systemctl disable sshd
systemctl start sshd
systemctl stop sshd
system stop smb --samba
journal xx
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su - root # 切换到root
sudo reboot # 使用root用户执行
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Step1: sudo cp xxx xxx
Error: UserName is not in the sudoers file. This incident will be reported.
Resolve: https://www.unixtutorial.org/how-to-use-visudo
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