setvtrgb: 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/setvtrgb - from package: kbd

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

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