hypertex: 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/lib/axiom-20140801/bin/hypertex - from package: axiom-hypertex

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

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