deluged: 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/deluged - from package: deluged

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

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