Modifying bashrc with xrandr doesn't work?

Question

I added the following line to my bashrc:

alias b="xrandr --output HDMI-1 --brightness"

When I open another terminal and run b, b 0.1, or b 1 it says that command "b" is not found.

I have a similar line for vim that works fine though:

alias v="vim"

What gives?

Answer 1

To apply changes , run :

source .bashrc

Also you can log out then log in instead.