virtualbricks: 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/virtualbricks - from package: virtualbricks

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

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