1、[root@linuxprobe ~]# yum install ftp Loaded plugins: langpacks, product-id, subscription-manager………………省略部分输出信息………………Installing:ftp x86_64 0.17-66.el7 rhel 61 kTransaction Summary================================================================================Install 1 PackageTotal download size: 61 kInstalled size: 96 kIs this ok [y/d/N]: yDownloading packages: Running transaction checkRunning transaction testTransaction test succeededRunning transactionInstalling : ftp-0.17-66.el7.x86_64 1/1Verifying : ftp-0.17-66.el7.x86_64 1/1Installed:ftp.x86_64 0:0.17-66.el7Complete!