That's interesting. I didn't see anything in the 1st ten messages in this thread that said this is what you want. I explicitly stated in message #8 in this thread: and your response to that in message #9 in this thread said that you wanted to get was:

Code:

Last login Fri Feb 14 2014 11:16 on pts/56 from redbftyu45
Last login Wed Aug 7, 2013 on pts/111
On since Feb 20 2014 12:19:08 on pts/24 from revbf43dbhtty
On since Feb 20 2014 11:26:13 on pts/11 from  revbf43dbhtty

I don't see anything here about wanting the user ID in this output.

With you new requirements, a simple way produce the output you requested is:

Code:

awk '
/^Login name/ {
        name = $1 " " $2 " " $3
        next
}
/^(Last login|On since)/ {
        print name "   " $0
}' input_file

as long as you don't require the inconsistent spacing between fields shown above.