Repository update

i have a repository server for red hat and centos clients.
the repository contain all the rpms from the original install cd.
now lets say i will add for example the new BASH rpm that fixes the shellshock vaulnerbility. when the client machine will run the command: "yum update bash" did the yum will know to take the new BASH rpm?

Thanks
Guy

You need to re-run createrepo . within the repositries dir.
As soon this is done on the server, the client will catch the new rpm.

hth