dz80: 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 CentOS possible default full paths are:

/usr/bin/dz80 - from package: d52

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/dz80 - from package: d52

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

Error in other languages:
dz80: bevel nie gevind nie
dz80: comandă negăsită
dz80: comando não encontrado
dz80: commande introuvable
dz80: command not found
dz80: käsku ei ole
dz80: không tìm thấy lệnh
dz80: komanda nerasta
dz80: Kommando nicht gefunden.
dz80: kommandot finns inte
dz80: komut yok
dz80: nie znaleziono polecenia
dz80: níor aimsíodh an t-ordú
dz80: no se encontró la orden
dz80: no s'ha trobat l'ordre
dz80: opdracht niet gevonden
dz80: parancs nem található
dz80: perintah tidak ditemukan
dz80: príkaz nenájdený
dz80: příkaz nenalezen
dz80: команда не найдена
dz80: командата не е открита
dz80: 命令找不到
dz80: コマンドが見つかりません