translate this string

Hi,
I'm using code below to assign title for Putty Window to show user@hostname+curr directory.
Trying to read this "write only" language, can anybody help me to go thru this string, too many thing in it I can't expaing

Tx
T

export PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME}: ${PWD}\007"'

Take a look at the Linux documentation project's document on xterm title bar mainpulation