ovf2ovp: 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/ovf2ovp - from package: texlive

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

On Debian possible default full paths are:

/usr/bin/ovf2ovp - from package: texlive-binaries

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

Error in other languages:
ovf2ovp: bevel nie gevind nie
ovf2ovp: comandă negăsită
ovf2ovp: comando não encontrado
ovf2ovp: commande introuvable
ovf2ovp: command not found
ovf2ovp: käsku ei ole
ovf2ovp: không tìm thấy lệnh
ovf2ovp: komanda nerasta
ovf2ovp: Kommando nicht gefunden.
ovf2ovp: kommandot finns inte
ovf2ovp: komut yok
ovf2ovp: nie znaleziono polecenia
ovf2ovp: níor aimsíodh an t-ordú
ovf2ovp: no se encontró la orden
ovf2ovp: no s'ha trobat l'ordre
ovf2ovp: opdracht niet gevonden
ovf2ovp: parancs nem található
ovf2ovp: perintah tidak ditemukan
ovf2ovp: príkaz nenájdený
ovf2ovp: příkaz nenalezen
ovf2ovp: команда не найдена
ovf2ovp: командата не е открита
ovf2ovp: 命令找不到
ovf2ovp: コマンドが見つかりません