dvipdfm: 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/dvipdfm - from package: dvipdfm

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

On Debian possible default full paths are:

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

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

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