Shell Programming and Scripting

Hello:

Any bash PS1 gurus in the house?
I have a custom 2-line prompt and it displays fine, but there is an occasional anomaly.
The backspace key sometimes takes out the 2nd line.
Here's the relevant ~/.bashrc code:

Code:

MKF='This is my Kung-Fu'
DOS='C:${PWD//\//\\\}>'
PS1="\[\033[01;31m\]$MKF\n\[\033[00m\]\[$DOS\033[00m\]"

and the C:\home\JJ> gets removed on occasion by backspace key strokes.

Here's what I notice at the 2nd line of the prompt.
I can type vi (space) and then backspace 3 times and it's gone. I can still type commands but on an empty line.

Versions:
GNU bash, version 4.0.38
GNOME Terminal 2.28.2 (embedded on the desktop using devilspie)
It does same in terminal 0.4.5 (Xfce 4.6.2)

I have checked|studied 17 sites and got this far, now I need your help.

Thanks for your time!

Dis-regard, all fixed.
<code>
PS1="\[\033[01;31m\]$MKF\n\[\033[00m\]\[\033[01;33m\]$DOS\[\033[00m\]"
</code>

Thanks Gurus!