"Bash prompt variables
"As anything else in the linux system also bash prompt can be customized. Bash prompt can be customized by changing the values of bash PS1, PS2, PS3, PS4 variables. To keep the things simple, this article will be concerned just with PS1 and PS2 variables.
"Use echo command to see the current value of PS1 and PS2 variables.
"echo "Bash PS1 variable:" $PS1
echo "Bash PS2 variable:" $PS2
"Bash PS1 prompt variable
"PS1 is a primary prompt variable. Currently it holds u@h:w$ special bash characters. This is the default structure of the bash prompt on many Linux systems and is displayed every time you log in using a terminal.Please see the following section "Bash prompt special characters" for explanation of u, h, w and $ symbols."
