sometimes when you try to install a linux command which gives you the below. For instance lets install replace command.
# yum install replace
No package replace available.
It means that there is no such a package is available. But it belongs to software package. To know about which software is owning that command, please login to a server which has replace command installed and run this below.
# rpm -qif /usr/bin/replace
Name : MySQL-server Relocations: (not relocatable)
Version : 5.0.96 Vendor: MySQL AB
So all we need to do is.
# yum install mysql-server
Now you should be ready to use replace command on your server.