xineplayer: 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/xineplayer - from package: vdr-plugin-xine

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

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