make-octave-forge-debpkg: command not found

Have You tried accessing the binary with the full path?

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/make-octave-forge-debpkg - from package: octave-pkg-dev

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