sound-juicer: 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/sound-juicer - from package: sound-juicer

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

On Debian possible default full paths are:

/usr/bin/sound-juicer - from package: sound-juicer

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

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