sopranod: 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 CentOS possible default full paths are:

/usr/bin/sopranod - from package: soprano

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/sopranod - from package: soprano-daemon

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

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