td: 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/td - from package: textdraw

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

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