ldapadduser: 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/ldapadduser - from package: ldapscripts

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

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