dvilj4: 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/dvilj4 - from package: texlive-dviutils

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

On Debian possible default full paths are:

/usr/bin/dvilj4 - from package: texlive-binaries

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

Error in other languages:
dvilj4: bevel nie gevind nie
dvilj4: comandă negăsită
dvilj4: comando não encontrado
dvilj4: commande introuvable
dvilj4: command not found
dvilj4: käsku ei ole
dvilj4: không tìm thấy lệnh
dvilj4: komanda nerasta
dvilj4: Kommando nicht gefunden.
dvilj4: kommandot finns inte
dvilj4: komut yok
dvilj4: nie znaleziono polecenia
dvilj4: níor aimsíodh an t-ordú
dvilj4: no se encontró la orden
dvilj4: no s'ha trobat l'ordre
dvilj4: opdracht niet gevonden
dvilj4: parancs nem található
dvilj4: perintah tidak ditemukan
dvilj4: príkaz nenájdený
dvilj4: příkaz nenalezen
dvilj4: команда не найдена
dvilj4: командата не е открита
dvilj4: 命令找不到
dvilj4: コマンドが見つかりません