jpylyzer: command not found

Have You tried accessing the binary with the full path?

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/jpylyzer - from package: python-jpylyzer

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