explain shell . com about <span style="background-color:white;position: fixed; bottom:0; right:0;" id="coords"></span> grep(1) other manpages egrep(1) fgrep(1) plan9-grep(1) rgrep(1) grep(1posix) -B1 LOLBOW irc.freenode.#infoforcefeed.weechatlog | grep(1) other manpages egrep(1) fgrep(1) plan9-grep(1) rgrep(1) grep(1posix) -E v '(LOLBOW|--)' | awk(1posix) other manpages plan9-awk(1) '{print $3}' | sort(1) other manpages plan9-sort(1) sort(1posix) | uniq(1) other manpages plan9-uniq(1) uniq(1posix) -c | sort(1) other manpages plan9-sort(1) sort(1posix) -n r print lines matching a pattern -B NUM , --before-context= NUM Print NUM lines of leading context before matching lines. Places a line containing a group separator ( -- ) between contiguous groups of matches. With the -o or --...