duneproject: 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/duneproject - from package: libdune-common-dev

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

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