dvidvi: command not found

Have You tried accessing the binary with the full path?

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/dvidvi - from package: texlive-dviutils

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

On Debian possible default full paths are:

/usr/bin/dvidvi - from package: dvidvi

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