PS1='\[\e[7;46m\]\u\[\e[0m\]@\[\e[0;32m\]\h\[\e[0m\]:\[\e[0;34m\]\w\[\e[0m\]\$ '
from:
http://professor.blog.51cto.com/996189/1572141
http://www.cnblogs.com/jsfans/p/3844779.html
PS1='\[\e[7;46m\]\u\[\e[0m\]@\[\e[0;32m\]\h\[\e[0m\]:\[\e[0;34m\]\w\[\e[0m\]\$ '
from:
http://professor.blog.51cto.com/996189/1572141
http://www.cnblogs.com/jsfans/p/3844779.html