So I am describing today only the most frequently used search operators alongwith real-life examples. College students will particularly find examples more interesting!
>> First note common syntax of following Google search operators…
There should not be any space on either side of colon [:]
Also all search operator are case-sensitive!
# site: This operator is useful for searching a site and/or its subdomain.
- site:devilsworkshop.org will restrict search to all subdomain under devilsworkshop.org
- site:edu will search all site in edu top domain. Useful for researchers and college students while studying and writing for papers as site:edu will restrict search results to the educational sites!
# filetype: You can directly use Google to search any type of files.
- filetype:ppt to search all presentation slides. This is how I manage to create presentations just one night before!
- filetype:pdf will search only pdf files! Good for searching ebooks.
- filetype:pdf site:edu will return all files with pdf extensions from edu domain. Useful to complete journals or study assignments!
# inurl: To search something in URLs
- inurl:md5 will find keyword md5 in URLs.
- inurl:md5 filetype:java will return all java source files with md5 in their name or URL. How about using this to complete programming assignments in college!
Also try allinurl: operator which looks all keywords into URL only!
# intitle: To search something in page title. Useful when searching a too common word.
- intitle:md5 will return all documents having md5 in their title.
- intitle:Hacking filetype:pdf will return all pdf files i.e. mostly ebooks and papers about hacking.
Also try allintitle: operator which looks all keywords into title only!
# define: To use Google search as dictionary. There are other dedicated dictionary services but none of them is as clean and fast as Google.
- define:hacker will show meanings of hacker.
- define:network security will return meaning of network security.
- Note: Do not type anything before define: or combine it with other operators!
# OR - To combine results of multiple searches! By default Google performs ANDing on keywords we use while searching. But sometimes explicit OR can help more.
- filetype:pdf OR filetype:doc will search for pdf as well as doc files. This will help you complete your journals
- site:en.wikipedia.org OR site:howstuffworks.com will restrict search to Wikipedia English and How Stuff Works site!
Note OR must be in capital and it doesn’t have colon after it!
Related Google Trick: Live Cricket Scores – Just One-Click Away!
[Updates: A small typo fix by Vinzz]