beakerlib-testwatcher: 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/beakerlib-testwatcher - from package: beakerlib

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

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