sudo yum install --downloadonly --downloaddir=/root/package/PostgreSQL postgresql.x86_64 0:9.2.24-1.el7_5
就会将rpm包存放到/root/package/PostgreSQL目录下
方法二：
修改/etc/yum.conf即可
[main] cachedir=/var/cache/yum/test keepcache=1 debuglevel=2
cachedir是放置rpm包的地方，可以修改，keepcache=1表示保存下载的rpm包
[root@oggreceiver packages]# pwd /var/cache/yum/test/updates/packages [root@oggreceiver packages]# ls postgresql-9.2.24-1.el7_5.x86_64.rpm postgresql-contrib-9.2.24-1.el7_5.x86_64.rpm postgresql-libs-9.2.24-1.el7_5.x86_64.rpm postgresql-server-9.2.24-1.el7_5.x86_64.rpm
修改/etc/yum.conf即可
[main] cachedir=/var/cache/yum/test keepcache=1 debuglevel=2
cachedir是放置rpm包的地方，可以修改，keepcache=1表示保存下载的rpm包
[root@oggreceiver packages]# pwd /var/cache/yum/test/updates/packages [root@oggreceiver packages]# ls postgresql-9.2.24-1.el7_5.x86_64.rpm postgresql-contrib-9.2.24-1.el7_5.x86_64.rpm postgresql-libs-9.2.24-1.el7_5.x86_64.rpm postgresql-server-9.2.24-1.el7_5.x86_64.rpm