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CentOS 7 常用命令

· 2 min read

1. yum 更新

#yum update

通过 yum provides 查询提供指令命令的包， 例 ifconfig

#yum provides ifconfig

然后通过 yum install 安装指定的包

#yum install net-tools

2. df 查看文件/夹大小

# df -H

3. hostnamectl 使用 hostnamectl 更改主机名：

4. chmod

为/var/lib/wordpress/wp-content 及下面所有文件和文件位添加 Other 用户可写权限

chmod -R o+w /var/lib/wordpress/wp-content

为/var/lib/wordpress/wp-content 及下面所有文件和文件位修改 user 和 group Owner 为 33

chown -R 33:33 /var/lib/wordpress/wp-content

5. 使用 sestatus 或 getenforce 查看 SELinux 状态：

# sestatus
SELinux status: enabled
SELinuxfs mount: /sys/fs/selinux
SELinux root directory: /etc/selinux
Loaded policy name: targeted
Current mode: enforcing
Mode from config file: enforcing
Policy MLS status: enabled
Policy deny_unknown status: allowed
Max kernel policy version: 28
# getenforce
Enforcing

6. 使用 setenforce 关闭 SELinux:

# setenforce Permissive
# getenforce
Permissive
# sestatus
SELinux status: enabled
SELinuxfs mount: /sys/fs/selinux
SELinux root directory: /etc/selinux
Loaded policy name: targeted
Current mode: permissive
Mode from config file: enforcing
Policy MLS status: enabled
Policy deny_unknown status: allowed
Max kernel policy version: 28
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