[root@ccms24 ~]# yum search mozilla
Options Error: Error parsing 'metadata_expire': invalid integer value

usage: yum [options] < update | install | info | remove | list |
    clean | provides | search | check-update | groupinstall |
    groupupdate | grouplist | groupinfo | groupremove |
    makecache | localinstall | erase | upgrade | whatprovides |
    localupdate | resolvedep | shell | deplist >

options:
  -h, --help            show this help message and exit
  -t, --tolerant        be tolerant of errors
  -C                    run entirely from cache, don't update cache
  -c  [config file]     config file location
  -R  [minutes]         maximum command wait time
  -d  [debug level]     debugging output level
  -e  [error level]     error output level
  -y                    answer yes for all questions
  --version             show Yum version and exit
  --installroot=[path]  set install root
  --enablerepo=[repo]   enable one or more repositories (wildcards allowed)
  --disablerepo=[repo]  disable one or more repositories (wildcards allowed)
  --exclude=[package]   exclude package(s) by name or glob
  --obsoletes           enable obsoletes processing during updates
  --noplugins           disable Yum plugins