freenect-glview: 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/freenect-glview - from package: libfreenect-bin

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

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