yum list installed | grep docker
开始卸载
yum remove -y docker-ce-cli.x86_64 docker-scan-plugin.x86_64
卸载过程如下：
yum remove -y docker-ce-cli.x86_64 docker-scan-plugin.x86_64 Loaded plugins: fastestmirror, langpacks Resolving Dependencies --> Running transaction check ---> Package docker-ce-cli.x86_64 1:20.10.10-3.el7 will be erased ---> Package docker-scan-plugin.x86_64 0:0.9.0-3.el7 will be erased --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================================= Package Arch Version Repository Size ============================================================================================================================================= Removing: docker-ce-cli x86_64 1:20.10.10-3.el7 @docker-ce-stable 139 M docker-scan-plugin x86_64 0.9.0-3.el7 @docker-ce-stable 13 M Transaction Summary ============================================================================================================================================= Remove 2 Packages Installed size: 152 M Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Erasing : 1:docker-ce-cli-20.10.10-3.el7.x86_64 1/2 Erasing : docker-scan-plugin-0.9.0-3.el7.x86_64 2/2 Verifying : docker-scan-plugin-0.9.0-3.el7.x86_64 1/2 Verifying : 1:docker-ce-cli-20.10.10-3.el7.x86_64 2/2 Removed: docker-ce-cli.x86_64 1:20.10.10-3.el7 docker-scan-plugin.x86_64 0:0.9.0-3.el7 Complete!删除安装文件：# rm -rf /var/lib/docker
docker bash: /usr/bin/docker: No such file or directory
彻底卸载！
