dvilj6: 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 CentOS possible default full paths are:

/usr/bin/dvilj6 - from package: texlive-dviutils

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/dvilj6 - from package: texlive-binaries

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

Error in other languages:
dvilj6: bevel nie gevind nie
dvilj6: comandă negăsită
dvilj6: comando não encontrado
dvilj6: commande introuvable
dvilj6: command not found
dvilj6: käsku ei ole
dvilj6: không tìm thấy lệnh
dvilj6: komanda nerasta
dvilj6: Kommando nicht gefunden.
dvilj6: kommandot finns inte
dvilj6: komut yok
dvilj6: nie znaleziono polecenia
dvilj6: níor aimsíodh an t-ordú
dvilj6: no se encontró la orden
dvilj6: no s'ha trobat l'ordre
dvilj6: opdracht niet gevonden
dvilj6: parancs nem található
dvilj6: perintah tidak ditemukan
dvilj6: príkaz nenájdený
dvilj6: příkaz nenalezen
dvilj6: команда не найдена
dvilj6: командата не е открита
dvilj6: 命令找不到
dvilj6: コマンドが見つかりません