buildtorrent: 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/buildtorrent - from package: buildtorrent

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

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