ref: 2a3ee1c2e3e1ea6477ca8715bf1531dbf34367a1 dir: /testdir/t.pp1/
/bwk/,/bwk/ { print $2, $1 } /ava/,/ava/ { print $2, $1 } /pjw/,/pjw/ { print $2, $1 }