pxdvi-xaw: 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/pxdvi-xaw - from package: xdvik-ja

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

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