dvipos: 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/dvipos - from package: texlive-dviutils

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

On Debian possible default full paths are:

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

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

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