ref: 3ddd7b252f8d0dacee2a7556e5ffb0d54bcf4f58 dir: /testdir/t.pp1/
/bwk/,/bwk/ { print $2, $1 } /ava/,/ava/ { print $2, $1 } /pjw/,/pjw/ { print $2, $1 }