tt2text: 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/tt2text - from package: direwolf

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

Error in other languages:
tt2text: bevel nie gevind nie
tt2text: comandă negăsită
tt2text: comando não encontrado
tt2text: commande introuvable
tt2text: command not found
tt2text: käsku ei ole
tt2text: không tìm thấy lệnh
tt2text: komanda nerasta
tt2text: Kommando nicht gefunden.
tt2text: kommandot finns inte
tt2text: komut yok
tt2text: nie znaleziono polecenia
tt2text: níor aimsíodh an t-ordú
tt2text: no se encontró la orden
tt2text: no s'ha trobat l'ordre
tt2text: opdracht niet gevonden
tt2text: parancs nem található
tt2text: perintah tidak ditemukan
tt2text: príkaz nenájdený
tt2text: příkaz nenalezen
tt2text: команда не найдена
tt2text: командата не е открита
tt2text: 命令找不到
tt2text: コマンドが見つかりません