Set Static IP raspberry PI

edita
 sudo nano /etc/dhcpcd.conf

y ahí configuras. Ejemplo:

interface eth0

static ip_address=192.168.3.242/24
static routers=192.168.3.10
static domain_name_servers=8.8.8.8

interface wlan0

static ip_address=192.168.1.142/24
static routers=192.168.1.2
static domain_name_servers=192.168.1.2

Luego guardas y renicias

Set workspaces number cinnamon (Centos 7)

Por ejemplo para colocar 6 workspaces:

gsettings set org.cinnamon.desktop.wm.preferences num-workspaces 6