paxtest: 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/paxtest - from package: paxtest

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

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