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

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

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