t1testpage: 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/t1testpage - from package: lcdf-typetools

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

Error in other languages:
t1testpage: bevel nie gevind nie
t1testpage: comandă negăsită
t1testpage: comando não encontrado
t1testpage: commande introuvable
t1testpage: command not found
t1testpage: käsku ei ole
t1testpage: không tìm thấy lệnh
t1testpage: komanda nerasta
t1testpage: Kommando nicht gefunden.
t1testpage: kommandot finns inte
t1testpage: komut yok
t1testpage: nie znaleziono polecenia
t1testpage: níor aimsíodh an t-ordú
t1testpage: no se encontró la orden
t1testpage: no s'ha trobat l'ordre
t1testpage: opdracht niet gevonden
t1testpage: parancs nem található
t1testpage: perintah tidak ditemukan
t1testpage: príkaz nenájdený
t1testpage: příkaz nenalezen
t1testpage: команда не найдена
t1testpage: командата не е открита
t1testpage: 命令找不到
t1testpage: コマンドが見つかりません