how to get a two-line PS1

[lituan]

I'd like to show PS1 prompt in one line, and put my command in second line, so that I can see all the infomation and do not have to type command into two lines, how could I get this feature?

[RuhtraX]

You can use "\n" to break a line in your PS1 variable.
For example setting your PS1 variable like this in your .bashrc:
PS1='\u@\h:\w\n\$ '
will give you something like this:

username@hostname:/working/directory
$ (your commands go here)