taurustrend2d: 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/taurustrend2d - from package: python-taurus

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

Error in other languages:
taurustrend2d: bevel nie gevind nie
taurustrend2d: comandă negăsită
taurustrend2d: comando não encontrado
taurustrend2d: commande introuvable
taurustrend2d: command not found
taurustrend2d: käsku ei ole
taurustrend2d: không tìm thấy lệnh
taurustrend2d: komanda nerasta
taurustrend2d: Kommando nicht gefunden.
taurustrend2d: kommandot finns inte
taurustrend2d: komut yok
taurustrend2d: nie znaleziono polecenia
taurustrend2d: níor aimsíodh an t-ordú
taurustrend2d: no se encontró la orden
taurustrend2d: no s'ha trobat l'ordre
taurustrend2d: opdracht niet gevonden
taurustrend2d: parancs nem található
taurustrend2d: perintah tidak ditemukan
taurustrend2d: príkaz nenájdený
taurustrend2d: příkaz nenalezen
taurustrend2d: команда не найдена
taurustrend2d: командата не е открита
taurustrend2d: 命令找不到
taurustrend2d: コマンドが見つかりません