clipper-config: 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/clipper-config - from package: clipper-devel

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

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