tkpod: command not found

Have You tried accessing the binary with the full path?

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/tkpod - from package: libtk-pod-perl

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