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

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

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