jetring-explode: 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/jetring-explode - from package: jetring

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