dee-tool: 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/dee-tool - from package: dee-tools

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

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