當不知道某個命令是哪個包裝時，可以在已經有這個命令的主機上用下面的命令確定是哪個安裝包安裝的
#yum whatprovides 命令路徑或者命令的絕對路徑
例：#yum whatprovides /usr/sbin/ss
ss:bash:command not found
yum install iproute -y
ifconfig:bash:command not found
yum install net-tools -y
vim:bash:command not found
yum install vim -y
sar:bash:command not found
yum install sysstat
-bash: brctl: command not found
yum install bridge-utils -y