ref: 0eeec2359f4cce389ae4e6163959c1fda3dcb9ad dir: /testdir/t.pp1/
/bwk/,/bwk/ { print $2, $1 } /ava/,/ava/ { print $2, $1 } /pjw/,/pjw/ { print $2, $1 }