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

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