taurusuic4: 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/taurusuic4 - from package: python-taurus

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

Error in other languages:
taurusuic4: bevel nie gevind nie
taurusuic4: comandă negăsită
taurusuic4: comando não encontrado
taurusuic4: commande introuvable
taurusuic4: command not found
taurusuic4: käsku ei ole
taurusuic4: không tìm thấy lệnh
taurusuic4: komanda nerasta
taurusuic4: Kommando nicht gefunden.
taurusuic4: kommandot finns inte
taurusuic4: komut yok
taurusuic4: nie znaleziono polecenia
taurusuic4: níor aimsíodh an t-ordú
taurusuic4: no se encontró la orden
taurusuic4: no s'ha trobat l'ordre
taurusuic4: opdracht niet gevonden
taurusuic4: parancs nem található
taurusuic4: perintah tidak ditemukan
taurusuic4: príkaz nenájdený
taurusuic4: příkaz nenalezen
taurusuic4: команда не найдена
taurusuic4: командата не е открита
taurusuic4: 命令找不到
taurusuic4: コマンドが見つかりません