hpigensimdata: 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/hpigensimdata - from package: openhpi32

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

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