Do you know how to look for special characters with google...?
I'm looking at bash code and there's the ## operator. I would like to know what It does but I wasn't able to figure out a way to protect the character (I'm not sure it's even possible).
This is particularly annoying when you're looking for some code patterns, some characters are always ignored.
Google strips most punctuation from queries, as described here, so it won't help you with the bash syntax.
It's very easy to search for the string "##" in the bash documentation: Just run "info bash", hit "s", and enter "##" as the search string.
alekone
google strips puntuation, imho, because:
- it's somewhere used for special search (chars like - to exclude, +to add and 10..20 to specify a range)
- to avoid spammers to get email addresses (characters like @ or .) in my experience, it's even impossible to escape special characters. the only solution I found, by now, is using yahoo http://it.search.yahoo.com/
来源：https://stackoverflow.com/questions/842478/looking-for-special-characters-in-google