hxtool: 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 CentOS possible default full paths are:

/usr/bin/hxtool - from package: heimdal-workstation

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/hxtool - from package: heimdal-clients

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

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