tatd: 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/tatd - from package: tcm

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