moosicd: 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/moosicd - from package: moosic

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

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