x2goprint: 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/x2goprint - from package: x2goserver-printing

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

Error in other languages:
x2goprint: bevel nie gevind nie
x2goprint: comandă negăsită
x2goprint: comando não encontrado
x2goprint: commande introuvable
x2goprint: command not found
x2goprint: käsku ei ole
x2goprint: không tìm thấy lệnh
x2goprint: komanda nerasta
x2goprint: Kommando nicht gefunden.
x2goprint: kommandot finns inte
x2goprint: komut yok
x2goprint: nie znaleziono polecenia
x2goprint: níor aimsíodh an t-ordú
x2goprint: no se encontró la orden
x2goprint: no s'ha trobat l'ordre
x2goprint: opdracht niet gevonden
x2goprint: parancs nem található
x2goprint: perintah tidak ditemukan
x2goprint: príkaz nenájdený
x2goprint: příkaz nenalezen
x2goprint: команда не найдена
x2goprint: командата не е открита
x2goprint: 命令找不到
x2goprint: コマンドが見つかりません