pacoball: 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/pacoball - from package: paco

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

On Debian possible default full paths are:

/usr/bin/pacoball - from package: paco

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

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