pof8: 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/pof8 - from package: mh-book

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

Error in other languages:
pof8: bevel nie gevind nie
pof8: comandă negăsită
pof8: comando não encontrado
pof8: commande introuvable
pof8: command not found
pof8: käsku ei ole
pof8: không tìm thấy lệnh
pof8: komanda nerasta
pof8: Kommando nicht gefunden.
pof8: kommandot finns inte
pof8: komut yok
pof8: nie znaleziono polecenia
pof8: níor aimsíodh an t-ordú
pof8: no se encontró la orden
pof8: no s'ha trobat l'ordre
pof8: opdracht niet gevonden
pof8: parancs nem található
pof8: perintah tidak ditemukan
pof8: príkaz nenájdený
pof8: příkaz nenalezen
pof8: команда не найдена
pof8: командата не е открита
pof8: 命令找不到
pof8: コマンドが見つかりません