minidjvu: 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/minidjvu - from package: minidjvu

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