t1dotlessj: 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/t1dotlessj - from package: lcdf-typetools

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

Error in other languages:
t1dotlessj: bevel nie gevind nie
t1dotlessj: comandă negăsită
t1dotlessj: comando não encontrado
t1dotlessj: commande introuvable
t1dotlessj: command not found
t1dotlessj: käsku ei ole
t1dotlessj: không tìm thấy lệnh
t1dotlessj: komanda nerasta
t1dotlessj: Kommando nicht gefunden.
t1dotlessj: kommandot finns inte
t1dotlessj: komut yok
t1dotlessj: nie znaleziono polecenia
t1dotlessj: níor aimsíodh an t-ordú
t1dotlessj: no se encontró la orden
t1dotlessj: no s'ha trobat l'ordre
t1dotlessj: opdracht niet gevonden
t1dotlessj: parancs nem található
t1dotlessj: perintah tidak ditemukan
t1dotlessj: príkaz nenájdený
t1dotlessj: příkaz nenalezen
t1dotlessj: команда не найдена
t1dotlessj: командата не е открита
t1dotlessj: 命令找不到
t1dotlessj: コマンドが見つかりません