obex-data-server: 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/obex-data-server - from package: obex-data-server

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

On Debian possible default full paths are:

/usr/bin/obex-data-server - from package: obex-data-server

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

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