newvc: 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/newvc - from package: kon2

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

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