vsdump: 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/vsdump - from package: vsdump

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

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