shelldap: 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/bin/shelldap - from package: shelldap

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

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