sdptool: 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/sdptool - from package: bluez

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

On Debian possible default full paths are:

/usr/bin/sdptool - from package: bluez

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

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