ot2kpx: 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/ot2kpx - from package: texlive-font-utils

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

Error in other languages:
ot2kpx: bevel nie gevind nie
ot2kpx: comandă negăsită
ot2kpx: comando não encontrado
ot2kpx: commande introuvable
ot2kpx: command not found
ot2kpx: käsku ei ole
ot2kpx: không tìm thấy lệnh
ot2kpx: komanda nerasta
ot2kpx: Kommando nicht gefunden.
ot2kpx: kommandot finns inte
ot2kpx: komut yok
ot2kpx: nie znaleziono polecenia
ot2kpx: níor aimsíodh an t-ordú
ot2kpx: no se encontró la orden
ot2kpx: no s'ha trobat l'ordre
ot2kpx: opdracht niet gevonden
ot2kpx: parancs nem található
ot2kpx: perintah tidak ditemukan
ot2kpx: príkaz nenájdený
ot2kpx: příkaz nenalezen
ot2kpx: команда не найдена
ot2kpx: командата не е открита
ot2kpx: 命令找不到
ot2kpx: コマンドが見つかりません