randomsound: 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/sbin/randomsound - from package: randomsound

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

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