xpbs_datadump: command not found

Have You tried accessing the binary with the full path?

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/lib64/xpbs/bin/xpbs_datadump - from package: torque-gui

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