CentOS - how do I check if "Development Tools" is installed?

Question

I installed "Development Tools" with yum (`yum group install "Development Tools") and wanted to check it's installed. However, if I re-run the group install command I get:

Maybe run: yum groups mark install (see man yum)
No packages in any requested group available to install or update.

so I assume the group has installed. However is there a way to check? E.g. listing the packages so I can tick a few off.

Answer 1

You can use the yum grouplist command e.g.

yum grouplist Dev* installed  ...
Installed Groups:
   Development tools
Done