condor_set_shutdown: 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 Debian possible default full paths are:

/usr/sbin/condor_set_shutdown - from package: htcondor

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

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