NiBackRecorder: 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/NiBackRecorder - from package: openni-examples

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

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