qhold-torque: 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

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/qhold-torque - from package: torque-client

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