dasdcat: 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/dasdcat - from package: hercules

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

On Debian possible default full paths are:

/usr/bin/dasdcat - from package: hercules

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

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