catmaster: 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 Debian possible default full paths are:

/usr/bin/catmaster - from package: watchcatd

You may install the required package with command apt-get install {package}

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