ldaprenamegroup: 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/ldaprenamegroup - from package: ldapscripts

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

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