追加したyumリポジトリを一覧で確認する

yum リポジトリを確認したい場合は下記のコマンドを実行すると一覧表示できます。
デフォルトで有効なリポジトリは、 status の部分にenabled と表示されます。

# yum repolist all
Loaded plugins: downloadonly, fastestmirror, security
Loading mirror speeds from cached hostfile
 * base: ftp.iij.ad.jp
 * elrepo: mirror.smartmedia.net.id
 * extras: ftp.iij.ad.jp
 * updates: ftp.iij.ad.jp
repo id                                         repo name                                                                                   status
C6.0-base                                       CentOS-6.0 - Base                                                                           disabled
C6.0-centosplus                                 CentOS-6.0 - CentOSPlus                                                                     disabled
C6.0-contrib                                    CentOS-6.0 - Contrib                                                                        disabled
C6.0-extras                                     CentOS-6.0 - Extras                                                                         disabled
C6.0-updates                                    CentOS-6.0 - Updates                                                                        disabled
C6.1-base                                       CentOS-6.1 - Base                                                                           disabled
C6.1-centosplus                                 CentOS-6.1 - CentOSPlus                                                                     disabled
C6.1-contrib                                    CentOS-6.1 - Contrib                                                                        disabled
C6.1-extras                                     CentOS-6.1 - Extras                                                                         disabled
C6.1-updates                                    CentOS-6.1 - Updates                                                                        disabled
C6.2-base                                       CentOS-6.2 - Base                                                                           disabled
C6.2-centosplus                                 CentOS-6.2 - CentOSPlus                                                                     disabled
C6.2-contrib                                    CentOS-6.2 - Contrib                                                                        disabled
C6.2-extras                                     CentOS-6.2 - Extras                                                                         disabled
C6.2-updates                                    CentOS-6.2 - Updates                                                                        disabled
C6.3-base                                       CentOS-6.3 - Base                                                                           disabled
C6.3-centosplus                                 CentOS-6.3 - CentOSPlus                                                                     disabled
C6.3-contrib                                    CentOS-6.3 - Contrib                                                                        disabled
C6.3-extras                                     CentOS-6.3 - Extras                                                                         disabled
C6.3-updates                                    CentOS-6.3 - Updates                                                                        disabled
base                                            CentOS-6 - Base                                                                             enabled: 6381
c6-media                                        CentOS-6 - Media                                                                            disabled
centosplus                                      CentOS-6 - Plus                                                                             disabled
contrib                                         CentOS-6 - Contrib                                                                          disabled
debug                                           CentOS-6 - Debuginfo                                                                        disabled
elrepo                                          ELRepo.org Community Enterprise Linux Repository - el6                                      enabled:  312
elrepo-extras                                   ELRepo.org Community Enterprise Linux Extras Repository - el6                               disabled
elrepo-kernel                                   ELRepo.org Community Enterprise Linux Kernel Repository - el6                               disabled
elrepo-testing                                  ELRepo.org Community Enterprise Linux Testing Repository - el6                              disabled
epel                                            Extra Packages for Enterprise Linux 6 - x86_64                                              disabled
epel-debuginfo                                  Extra Packages for Enterprise Linux 6 - x86_64 - Debug                                      disabled
epel-source                                     Extra Packages for Enterprise Linux 6 - x86_64 - Source                                     disabled
epel-testing                                    Extra Packages for Enterprise Linux 6 - Testing - x86_64                                    disabled
epel-testing-debuginfo                          Extra Packages for Enterprise Linux 6 - Testing - x86_64 - Debug                            disabled
epel-testing-source                             Extra Packages for Enterprise Linux 6 - Testing - x86_64 - Source                           disabled
extras                                          CentOS-6 - Extras                                                                           enabled:   13
updates                                         CentOS-6 - Updates                                                                          enabled: 1141
repolist: 7847

 

[対象]
CentOS 6.x