cuebreakpoints: 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/cuebreakpoints - from package: cuetools

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

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