How to properly colorize in SSH terminal on Ubuntu Server (.bashrc)?

Question

bash

I log into the Ubuntu 14.04 server via SSH Putty.
The terminal immediately gives the colors of the command line as follows:

I immediately run the following command (the color of the time changes itself, I do nothing (!!)) - I enter forcibly from under the same user via SU - the terminal changes colors (as it should be):

Now Questions:
1. Why is the necessary directive PS1 in ./bashrc not immediately processed during login?
2. Initial prompt (with clock) where does ./bashrc come from?

Answer 1

1. Because when logging in, ~/.bash_profile or ~/.profile is read. Usually they have lines like this: (in my ~/.profile)

# if running bash
if [ -n "$BASH_VERSION" ]; then
    # include .bashrc if it exists
    if [ -f "$HOME/.bashrc" ]; then
  . "$HOME/.bashrc"
    fi
fi

If they are not there, then it is worth adding.