vdeq: 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/vdeq - from package: vde2

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

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