hp48cc: 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/hp48cc - from package: hp48cc

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

Error in other languages:
hp48cc: bevel nie gevind nie
hp48cc: comandă negăsită
hp48cc: comando não encontrado
hp48cc: commande introuvable
hp48cc: command not found
hp48cc: käsku ei ole
hp48cc: không tìm thấy lệnh
hp48cc: komanda nerasta
hp48cc: Kommando nicht gefunden.
hp48cc: kommandot finns inte
hp48cc: komut yok
hp48cc: nie znaleziono polecenia
hp48cc: níor aimsíodh an t-ordú
hp48cc: no se encontró la orden
hp48cc: no s'ha trobat l'ordre
hp48cc: opdracht niet gevonden
hp48cc: parancs nem található
hp48cc: perintah tidak ditemukan
hp48cc: príkaz nenájdený
hp48cc: příkaz nenalezen
hp48cc: команда не найдена
hp48cc: командата не е открита
hp48cc: 命令找不到
hp48cc: コマンドが見つかりません