Questions tagged [search]
Questions about search algorithm mechanics and implementation. *NOT* for questions about using search tools within an API (e.g. Google, Bing, Facebook).
35,899
questions
3877votes
14answers
1.3mviews
grep a file, but show several surrounding lines?
I would like to grep for a string, but also show the preceding five lines and the following five lines as well as the matched line. How would I be able to do this?
- 281k
1868votes
16answers
567kviews
How to do case insensitive search in Vim
I'd like to search for an upper case word, for example COPYRIGHT in a file. I tried performing a search like:
/copyright/i # Doesn't work
but it doesn't work. I know that in Perl, if I give the ...
- 38.2k
867votes
22answers
753kviews
Use grep --exclude/--include syntax to not grep through certain files
I'm looking for the string foo= in text files in a directory tree. It's on a common Linux machine, I have bash shell:
grep -ircl "foo=" *
In the directories are also many binary files which ...
765votes
14answers
375kviews
How can I combine two or more querysets in a Django view?
I am trying to build the search for a Django site I am building, and in that search, I am searching in three different models. And to get pagination on the search result list, I would like to use a ...
- 10.8k
759votes
12answers
268kviews
Solr vs. ElasticSearch [closed]
What are the core architectural differences between these technologies?
Also, what use cases are generally more appropriate for each?
- 20.4k
732votes
9answers
208kviews
How to grep Git commit diffs or contents for a certain word
In a Git code repository I want to list all commits that contain a certain word. I tried this
git log -p | grep --context=4 "word"
but it does not necessarily give me back the filename (...
713votes
38answers
120kviews
Generate an integer that is not among four billion given ones
I have been given this interview question:
Given an input file with four billion integers, provide an algorithm to generate an integer which is not contained in the file. Assume you have 1 GB ...
657votes
23answers
888kviews
Python list of dictionaries search
Assume I have this:
[
{"name": "Tom", "age": 10},
{"name": "Mark", "age": 5},
{"name": "Pam", "age": 7}
]...
- 56.6k
625votes
8answers
368kviews
What is the difference between re.search and re.match?
What is the difference between the search() and match() functions in the Python re module?
I've read the documentation (current documentation), but I never seem to remember it. I keep having to look ...
- 131k
621votes
15answers
374kviews
Search all the occurrences of a string in the entire project in Android Studio
I've just started using Android Studio (IntelliJ), and I now look for the feature to find the occurrence of a string in any of the files in my project. For example: I want to find all the files that ...
- 43.9k
602votes
9answers
946kviews
574votes
6answers
709kviews
Is there a short contains function for lists?
I see people are using any to gather another list to see if an item exists in a list, but is there a quick way to just do something like this?
if list.contains(myItem):
# do something
- 289k
530votes
7answers
466kviews
How to design RESTful search/filtering? [closed]
I'm currently designing and implementing a RESTful API in PHP. However, I have been unsuccessful implementing my initial design.
GET /users # list of users
GET /user/1 # get user with id 1
POST /user ...
- 38.1k
468votes
7answers
120kviews
How to find the Git commit that introduced a string in any branch?
I want to be able to find a certain string which was introduced in any commit in
any branch, how can I do that? I found something (that I modified for Win32),
but git whatchanged doesn't seem to be ...
- 23.4k
429votes
5answers
298kviews
Going to a specific line number using Less in Unix
I have a file that has around million lines. I need to go to line number 320123 to check the data. How do I do that?
- 4,514
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