Slackware? Red Hat? Deneba? Caldera? Free BSD?

1. Red Hat 7.1 - Installing Red Hat packages after Red Hat is already installed.

How can I install packages that I forgot to install with the Red Hat
7.1 installation?

Here's my problem:
Various pieces of Red Hat keep saying that I am missing a file and
that it needs to be installed with a certain package (namely most of
the Kontrol Panel).  But I have been unsuccessful at finding where
this is done.  I am still a newbie with Linux, but I would assume that
there should be an "Add/Remove Programs" equivalent with Linux.

Please help!

2. ttyp* not resetting?

3. Red Hat & Free BSD

4. Dosemu won't start

5. What's the difference between the Red Hat, Caldera, Debian, Slackware, Mandrake, and SUSE distributions?

6. how to connect to internet???

7. Slackware vs. Caldera vs. Red Hat vs. ...

8. UltraSPARC panic[cpu0]

9. Slackware? Red Hat? Deneba? Caldera?

10. Problem logging in after upgradation from red hat 8 to red hat 9

11. migrating from red hat 8.0 to red hat 9.0

12. Installing Red Hat packages after Red Hat is already

13. The Red Hats are coming, the Red Hats are coming