Here_DOC -- What ever we are going to write in script: it will visible on output(Like Variable)

[prabhucloudxlab@cxln4 ~]$ cat>hello.sh

#! bin/bash
#heredoc

cat << Kreativ     #it will like variable
this is hello creative text
add another line
Kreativ



[prabhucloudxlab@cxln4 ~]$ sh hello.sh
this is hello creative text
add another line