pspax: 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/pspax - from package: pax-utils

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

On Debian possible default full paths are:

/usr/bin/pspax - from package: pax-utils

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

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