lprdvi: 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 Debian possible default full paths are:

/usr/bin/lprdvi - from package: dvi2ps

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