dacscheck: command not found

Have You tried accessing the binary with the full path?

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/dacscheck - from package: dacs

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