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I was installing the RedHat 5.5 64 bit. But in hurry I forgot to install the Packages needed. And I don't want to install RH again.

How can I install packages after installation?

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Do you have RHN account or not? – warl0ck Oct 20 '12 at 14:11
No my dear. We had a lot of conversation on this topic in this thread unix.stackexchange.com/questions/50465/… – OmiPenguin Oct 20 '12 at 14:15
Wait, why do you ask here again...I think the solution is nearly the same, build a local repo or just do the rpm -ivh XXX.rpm – warl0ck Oct 20 '12 at 14:19
Also If you were just learning about RedHat, use CentOS instead, which is based on RedHat – warl0ck Oct 20 '12 at 14:21

You have to use yum command to install packages.

First after installing Redhat, follows following steps to install packages.

$ sudo yum update

Then install a package using the following command:

$ sudo yum install <package-name>

Note: "package-name" should be exact as the name of the package present in the redhat repository.

To search the exact name of the package using a keyword, use the following yum option:

$ yum search <keyword>
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