Plan 9 from Bell Labs’s /usr/web/sources/patch/applied/mk-roget/mkroget
#!/bin/rc rtf2txt roget-body.rtf | sed ' 1,12d /^100. /{ N s/\n// p } /^388a. /{ N s/\n// p } ' > /lib/dict/roget mkindex -d roget | sort -u -t' ' +0f -1 +0 -1 +1n -2 | sed ' s/[ ]+$//g s/ / /g ' > /lib/dict/rogetindex