eliompp: 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/eliompp - from package: eliom

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

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