How can I get raw text output of a manual in my terminal

How can I get raw text output of a manual in my terminal?

I want to have the manual without a "less" type screen displayed.

You can change the pager to cat using the -P option:

man -P cat command

where command is the command of interest whose man page you wish to read.

You can also redirect the man page to a file which you can then open to read:

man command > file

You can directly read the compressed (could be uncompressed too) man files, residing under /usr/share/man/ in directories corresponding to respective sections.

So for example, to get the raw content of man page of cat, you need to read /usr/share/man/man1/cat.1.gz:

zcat /usr/share/man/man1/cat.1.gz 

Similarly, for man 2 fork:

zcat /usr/share/man/man2/fork.2.gz