sitesummary2ldapdhcp: 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/sitesummary2ldapdhcp - from package: debian-edu-config

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

Error in other languages:
sitesummary2ldapdhcp: bevel nie gevind nie
sitesummary2ldapdhcp: comandă negăsită
sitesummary2ldapdhcp: comando não encontrado
sitesummary2ldapdhcp: commande introuvable
sitesummary2ldapdhcp: command not found
sitesummary2ldapdhcp: käsku ei ole
sitesummary2ldapdhcp: không tìm thấy lệnh
sitesummary2ldapdhcp: komanda nerasta
sitesummary2ldapdhcp: Kommando nicht gefunden.
sitesummary2ldapdhcp: kommandot finns inte
sitesummary2ldapdhcp: komut yok
sitesummary2ldapdhcp: nie znaleziono polecenia
sitesummary2ldapdhcp: níor aimsíodh an t-ordú
sitesummary2ldapdhcp: no se encontró la orden
sitesummary2ldapdhcp: no s'ha trobat l'ordre
sitesummary2ldapdhcp: opdracht niet gevonden
sitesummary2ldapdhcp: parancs nem található
sitesummary2ldapdhcp: perintah tidak ditemukan
sitesummary2ldapdhcp: príkaz nenájdený
sitesummary2ldapdhcp: příkaz nenalezen
sitesummary2ldapdhcp: команда не найдена
sitesummary2ldapdhcp: командата не е открита
sitesummary2ldapdhcp: 命令找不到
sitesummary2ldapdhcp: コマンドが見つかりません