z88f: 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/bin/z88f - from package: z88

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

Error in other languages:
z88f: bevel nie gevind nie
z88f: comandă negăsită
z88f: comando não encontrado
z88f: commande introuvable
z88f: command not found
z88f: käsku ei ole
z88f: không tìm thấy lệnh
z88f: komanda nerasta
z88f: Kommando nicht gefunden.
z88f: kommandot finns inte
z88f: komut yok
z88f: nie znaleziono polecenia
z88f: níor aimsíodh an t-ordú
z88f: no se encontró la orden
z88f: no s'ha trobat l'ordre
z88f: opdracht niet gevonden
z88f: parancs nem található
z88f: perintah tidak ditemukan
z88f: príkaz nenájdený
z88f: příkaz nenalezen
z88f: команда не найдена
z88f: командата не е открита
z88f: 命令找不到
z88f: コマンドが見つかりません