ref: 3ddd7b252f8d0dacee2a7556e5ffb0d54bcf4f58 dir: /testdir/t.cat/
{print $2 " " $1} {print $1 " " "is", $2} {print $2 FS "is" FS $1} {print length($1 $2), length($1) + length($2)}