Move to 'L' (type 0fL)                  |L|inux Solaris Irix HP-UX
"lye
'Linux' is now in the 'l' register.
Move to 'S' (type fS)                   Linux |S|olaris Irix HP-UX
"sde"lP                                 Linux Linu|x| Irix HP-UX
'Solaris' is now in the 's' register.
Move to 'I' (type fI)                   Linux Linux |I|rix HP-UX
"ide"lP                                 Linux Linux Linu|x| HP-UX

0fLw2dwbyf<space>w2P

Move to L in Linux
ye     # Yank to end of word.
w      # Move to next word.
<C>ve  # Highlight Solaris.
"0p    # Paste Linux, Solaris ends up in unnamed register and Linux in 0
w      # Move to next word.
<C>ve  # Mark next word. (Or anywhere else)
"0p    # Paste Linux.

yww<C>v2f 2p
# Or
yww<C>v2el2p
yw           # Yank Linux
w            # Move to S in Solaris
<C>v2el      # Enter visual mode, highlight two * end, and l to consume space.
2p           # Paste Linux twice.

'<C>v2f '    # Alternative to <C>v2el

xnoremap p pgvy