mate-gsettings-toggle: 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/mate-gsettings-toggle - from package: mate-desktop

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

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