condor_configure: 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_configure - from package: htcondor

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

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