uuclient: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/uuclient - from package: krb5-devel

You may install the required package with command yum install {package}

Error in other languages:
uuclient: bevel nie gevind nie
uuclient: comandă negăsită
uuclient: comando não encontrado
uuclient: commande introuvable
uuclient: command not found
uuclient: käsku ei ole
uuclient: không tìm thấy lệnh
uuclient: komanda nerasta
uuclient: Kommando nicht gefunden.
uuclient: kommandot finns inte
uuclient: komut yok
uuclient: nie znaleziono polecenia
uuclient: níor aimsíodh an t-ordú
uuclient: no se encontró la orden
uuclient: no s'ha trobat l'ordre
uuclient: opdracht niet gevonden
uuclient: parancs nem található
uuclient: perintah tidak ditemukan
uuclient: príkaz nenájdený
uuclient: příkaz nenalezen
uuclient: команда не найдена
uuclient: командата не е открита
uuclient: 命令找不到
uuclient: コマンドが見つかりません