Search all man pages for a phrase
 

zgrep "my long phrase" /usr/share/man/*/*
was my best shot at searching all manpages for a phrase
but it didn't work for me on live Knoppix 3.4

Can someone please edit this cli so that it will find everything
I put between quotes in all man pages?

This works:

man -k <word> | grep -i <more words>

Example:

man -k user | grep -i 'account'

Hope this helps.

edit
If you install new software on a regular base, you might need to run makewhatis to update the manpage database. This is used when you use mans -k flag.