aubiocut: 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/aubiocut - from package: aubio-tools

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

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