dimbl: 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/dimbl - from package: dimbl

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