DBImporter: 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/DBImporter - from package: topp

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

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