xine-check: 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/xine-check - from package: xine-ui

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

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