tauruscurve: 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
/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/tauruscurve - from package: python-taurus

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