phpdox: 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/phpdox - from package: phpdox

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