ttm: 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/ttm - from package: ttm

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

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