index.html: 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/index.html - from package: axiom

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

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