exchange two words using sed in Linux

Question

guys! I am trying to exchange two words in a line but it doesn\'t work. For example: \"Today is my first day of university\" should be \"my is Today first day of university\"

Answer 1

I start to make it with \s which means any whitespaces chars.
I use it for match every words with [^\s]*which match with everything but not spaces.
And I had \s* for match withspaces between words. And don't forget to rewrite a space in replacement.

Look a this for an example:

sed 's#\([^ ]*\)\s+#\1 #'

( I use # instead of /)