rpm命令对系统的包进行管理：安装，删除，查询，更新等操作
1.查询
语法格式是：
rpm {-q|--query} [select-options] [query-options]
select-options
[PACKAGE_NAME] [-a,--all] [-f,--file FILE]
[-g,--group GROUP] {-p,--package PACKAGE_FILE]
[--hdrid SHA1] [--pkgid MD5] [--tid TID]
[--querybynumber HDRNUM] [--triggeredby PACKAGE_NAME]
[--whatprovides CAPABILITY] [--whatrequires CAPABILITY]
query-options
[--changelog] [-c,--configfiles] [--conflicts]
[-d,--docfiles] [--dump] [--filesbypkg] [-i,--info]
[--last] [-l,--list] [--obsoletes] [--provides]
[--qf,--queryformat QUERYFMT] [-R,--requires]
[--scripts] [-s,--state] [--triggers,--triggerscripts]
查询系统安装的所有包 rpm -qa
查询状态 rpm -qas
查询rpm包的信息：rpm -qai
查询包的配置文件信息 rpm -qac
2.安装使用-i参数
rpm {-i|--install} [install-options] PACKAGE_FILE ...
安装rpm包的最常见组合式：rpm -ivh
3.删除应用使用-e参数
rpm {-e|--erase} [--allmatches] [--justdb] [--nodeps] [--noscripts]
[--notriggers] [--test] PACKAGE_NAME ...
删除刚才安装的lrzsz
