xjremote: command not found

Have You tried accessing the binary with the full path?

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/xjremote - from package: xjadeo

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