ladish_control: 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/ladish_control - from package: ladish

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