pamundice: 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/pamundice - from package: netpbm-progs

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

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