# wget https://commoncrawl.s3.amazonaws.com/crawl-data/CC-MAIN-2018-26/segments/1529267859766.6/wet/CC-MAIN-20180618105733-20180618125538-00026.warc.wet.gz
...
# gunzip CC-MAIN-20180618105733-20180618125538-00026.warc.wet.gz
...
# ccse CC-MAIN-20180618105733-20180618125538-00026.warc.wet keyword search engine
...
# time ./ccse.scm  CC-MAIN-20180618105733-20180618125538-00026.warc.wet keyword search engine > out.txt

real    0m 12.67s
user    0m 12.54s
sys 0m 0.10s