用rpm 安装软件 rpm -ivh xxxx.rpm 软件名xxx要带.rpm 后缀
用rpm查看软件目录 rpm -ql xxxx 软件名xxx不要带.rpm 后缀
yum list 《安装包》 其实是 查看 本地和网络 是否存在，两边都在看的。
利用 yum list installed 其实 也可以查看 本地安装 哪些 软件
[root@testdb ~]# yum list installed | grep mysql mysql-community-client.x86_64 5.7.21-1.el7 installed mysql-community-common.x86_64 5.7.21-1.el7 installed mysql-community-libs.x86_64 5.7.21-1.el7 installed mysql-community-libs-compat.x86_64 5.7.21-1.el7 installed mysql-community-server.x86_64 5.7.21-1.el7 installed mysql57-community-release.noarch el7-10 @mysql57-community php71w-mysql.x86_64 7.1.11-1.w7 @webtatic [root@testdb ~]#
# 查看 nginx 是否已经安装 sh-4.2# rpm -qa | grep -i nginx nginx-1.12.2-1.el7_4.ngx.x86_64
# 查看 具体 软件名 的安装目录 sh-4.2# rpm -ql nginx-1.12.2-1.el7_4.ngx.x86_64 /etc/logrotate.d/nginx /etc/nginx /etc/nginx/conf.d /etc/nginx/conf.d/default.conf /etc/nginx/fastcgi_params /etc/nginx/koi-utf /etc/nginx/koi-win /etc/nginx/mime.types /etc/nginx/modules /etc/nginx/nginx.conf /etc/nginx/scgi_params /etc/nginx/uwsgi_params /etc/nginx/win-utf /etc/sysconfig/nginx /etc/sysconfig/nginx-debug /usr/lib/systemd/system/nginx-debug.service /usr/lib/systemd/system/nginx.service /usr/lib64/nginx /usr/lib64/nginx/modules /usr/libexec/initscripts/legacy-actions/nginx /usr/libexec/initscripts/legacy-actions/nginx/check-reload /usr/libexec/initscripts/legacy-actions/nginx/upgrade /usr/sbin/nginx /usr/sbin/nginx-debug /usr/share/doc/nginx-1.12.2 /usr/share/doc/nginx-1.12.2/COPYRIGHT /usr/share/man/man8/nginx.8.gz /usr/share/nginx /usr/share/nginx/html /usr/share/nginx/html/50x.html /usr/share/nginx/html/index.html /var/cache/nginx /var/log/nginx sh-4.2#