buildbot: 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

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/buildbot - from package: buildbot

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