hpuifilter: 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/rancid/bin/hpuifilter - from package: rancid

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

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