dvihp: 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/dvihp - from package: texlive-dviutils

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

On Debian possible default full paths are:

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

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

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