dasdls: 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/dasdls - from package: hercules

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

On Debian possible default full paths are:

/usr/bin/dasdls - from package: hercules

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

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