<hppavilion[1]> le/rn Russell\'s Teapot//Russell\'s little Teapot / Short and stout / Orbits near Mars / Or thereabout. / If you see it / Let us know / If you don\'t / What does that show?

[[ "$1" == ?*//* ]] || { echo 'usage: sled file//script'; exit 1; }; key="${1%%//*}"; value="${1#*//}"; [[ -f "$key" ]] || { echo 'Rosebud!'; exit 1; }; sed -i "$value" "$key" ;