Cynthiune: 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/Cynthiune - from package: cynthiune.app

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

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