xbmc-ps3remote: 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/xbmc-ps3remote - from package: xbmc-eventclients-ps3

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

Error in other languages:
xbmc-ps3remote: bevel nie gevind nie
xbmc-ps3remote: comandă negăsită
xbmc-ps3remote: comando não encontrado
xbmc-ps3remote: commande introuvable
xbmc-ps3remote: command not found
xbmc-ps3remote: käsku ei ole
xbmc-ps3remote: không tìm thấy lệnh
xbmc-ps3remote: komanda nerasta
xbmc-ps3remote: Kommando nicht gefunden.
xbmc-ps3remote: kommandot finns inte
xbmc-ps3remote: komut yok
xbmc-ps3remote: nie znaleziono polecenia
xbmc-ps3remote: níor aimsíodh an t-ordú
xbmc-ps3remote: no se encontró la orden
xbmc-ps3remote: no s'ha trobat l'ordre
xbmc-ps3remote: opdracht niet gevonden
xbmc-ps3remote: parancs nem található
xbmc-ps3remote: perintah tidak ditemukan
xbmc-ps3remote: príkaz nenájdený
xbmc-ps3remote: příkaz nenalezen
xbmc-ps3remote: команда не найдена
xbmc-ps3remote: командата не е открита
xbmc-ps3remote: 命令找不到
xbmc-ps3remote: コマンドが見つかりません