hxuncdata: 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/hxuncdata - from package: html-xml-utils

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

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