zip2st: 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/zip2st - from package: hatari

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

Error in other languages:
zip2st: bevel nie gevind nie
zip2st: comandă negăsită
zip2st: comando não encontrado
zip2st: commande introuvable
zip2st: command not found
zip2st: käsku ei ole
zip2st: không tìm thấy lệnh
zip2st: komanda nerasta
zip2st: Kommando nicht gefunden.
zip2st: kommandot finns inte
zip2st: komut yok
zip2st: nie znaleziono polecenia
zip2st: níor aimsíodh an t-ordú
zip2st: no se encontró la orden
zip2st: no s'ha trobat l'ordre
zip2st: opdracht niet gevonden
zip2st: parancs nem található
zip2st: perintah tidak ditemukan
zip2st: príkaz nenájdený
zip2st: příkaz nenalezen
zip2st: команда не найдена
zip2st: командата не е открита
zip2st: 命令找不到
zip2st: コマンドが見つかりません