remuco-audacious: 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/remuco-audacious - from package: remuco-audacious

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