hpisettime: 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/hpisettime - from package: openhpi32
/usr/bin/hpisettime - from package: openhpi

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

On Debian possible default full paths are:

/usr/bin/hpisettime - from package: openhpi-clients

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

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