dvi2ps: 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 Debian possible default full paths are:

/usr/bin/dvi2ps - from package: dvi2ps

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

Error in other languages:
dvi2ps: bevel nie gevind nie
dvi2ps: comandă negăsită
dvi2ps: comando não encontrado
dvi2ps: commande introuvable
dvi2ps: command not found
dvi2ps: käsku ei ole
dvi2ps: không tìm thấy lệnh
dvi2ps: komanda nerasta
dvi2ps: Kommando nicht gefunden.
dvi2ps: kommandot finns inte
dvi2ps: komut yok
dvi2ps: nie znaleziono polecenia
dvi2ps: níor aimsíodh an t-ordú
dvi2ps: no se encontró la orden
dvi2ps: no s'ha trobat l'ordre
dvi2ps: opdracht niet gevonden
dvi2ps: parancs nem található
dvi2ps: perintah tidak ditemukan
dvi2ps: príkaz nenájdený
dvi2ps: příkaz nenalezen
dvi2ps: команда не найдена
dvi2ps: командата не е открита
dvi2ps: 命令找不到
dvi2ps: コマンドが見つかりません