bindsym XF86MonBrightnessDown exec xbacklight -dec 5 # decrease screen brightness
# seach/tools/wlan/display
-bindsym XF86WLAN exec sh -c "if /usr/sbin/rfkill list|grep -q 'blocked yes' \; then /usr/sbin/rfkill unblock all \; else /usr/sbin/rfkill block all \; fi;"
+bindsym XF86WLAN exec sh -c "if (/usr/sbin/rfkill list|grep -q 'blocked yes' ); then /usr/sbin/rfkill unblock all; else /usr/sbin/rfkill block all; fi;"
#bindsym XF86Display exec presentation_mode
# Start i3bar to display a workspace bar (plus the system information i3status