ref: fa12af1c6f4643ca49f54b7b7a15a1efe82bdd76
dir: /bin/gensitemaptxt.rc/
#!/usr/bin/env rc for ( d in sites/*/ ) { echo $d 9 du -a $d | awk '/\.(md|html)$/ { print $2 }; {}' | 9 sed -e 's/\.(md|html)$//' -e 's,/index$,/,' -e 's,^sites/,http://,' > $d/sitemap.txt }