exaile: 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/exaile - from package: exaile

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

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