asc2xml: 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/asc2xml - from package: html-xml-utils

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

Error in other languages:
asc2xml: bevel nie gevind nie
asc2xml: comandă negăsită
asc2xml: comando não encontrado
asc2xml: commande introuvable
asc2xml: command not found
asc2xml: käsku ei ole
asc2xml: không tìm thấy lệnh
asc2xml: komanda nerasta
asc2xml: Kommando nicht gefunden.
asc2xml: kommandot finns inte
asc2xml: komut yok
asc2xml: nie znaleziono polecenia
asc2xml: níor aimsíodh an t-ordú
asc2xml: no se encontró la orden
asc2xml: no s'ha trobat l'ordre
asc2xml: opdracht niet gevonden
asc2xml: parancs nem található
asc2xml: perintah tidak ditemukan
asc2xml: príkaz nenájdený
asc2xml: příkaz nenalezen
asc2xml: команда не найдена
asc2xml: командата не е открита
asc2xml: 命令找不到
asc2xml: コマンドが見つかりません