jpeghotp: 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/jpeghotp - from package: jpegpixi

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

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