gnome-menus-blacklist: 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

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/sbin/gnome-menus-blacklist - from package: gnome-menus

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