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

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