Sample-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 Debian possible default full paths are:

/usr/bin/Sample-NiBackRecorder - from package: openni-utils

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

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