On Fri, May 23, 2008 at 8:50 AM, Matt Shields <mattboston at gmail.com> wrote: > > I'd use awk. Put the lines in a file, then do this > > cat test.txt | awk '{ print $1 "\t" $2 ".centos.com\t" $3 "\t" $4 }' > Or just awk '{ print $1 "\t" $2 ".centos.com\t" $3 "\t" $4 }' test.txt > newhostsfile (The cat just complicates things, as with most cats.... :-) mhr