dasdlist: 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/dasdlist - from package: hercules

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

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