pof2: 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/share/doc/mh-book/examples/mh/bin/pof2 - from package: mh-book

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

Error in other languages:
pof2: bevel nie gevind nie
pof2: comandă negăsită
pof2: comando não encontrado
pof2: commande introuvable
pof2: command not found
pof2: käsku ei ole
pof2: không tìm thấy lệnh
pof2: komanda nerasta
pof2: Kommando nicht gefunden.
pof2: kommandot finns inte
pof2: komut yok
pof2: nie znaleziono polecenia
pof2: níor aimsíodh an t-ordú
pof2: no se encontró la orden
pof2: no s'ha trobat l'ordre
pof2: opdracht niet gevonden
pof2: parancs nem található
pof2: perintah tidak ditemukan
pof2: príkaz nenájdený
pof2: příkaz nenalezen
pof2: команда не найдена
pof2: командата не е открита
pof2: 命令找不到
pof2: コマンドが見つかりません