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Grepping a huge file (80GB) any way to speed it up?

This has been running for an hour on a fairly powerful linux server which is otherwise not overloaded. Any alternative to grep? Anything about my syntax that can be improved, (egrep,fgrep better?) ...
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Best way to synchronize local HTML5 DB (WebSQL Storage, SQLite) with a server (2 way sync) [closed]

I am developing a mobile web application (for iPhone & Android) with a local database (using html5 webstorage) so my app is still usable when the user is offline. ...
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Easy way to test a URL for 404 in PHP?

I'm teaching myself some basic scraping and I've found that sometimes the URL's that I feed into my code return 404, which gums up all the rest of my code. ...
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How do I test a file upload in rails?

I have a controller which is responsible for accepting JSON files and then processing the JSON files to do some user maintenance for our application. In user testing the file upload and processing works, but of course I would like to automate the process of testing the user maintenance in our testin...
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Difference between a Factory, Provider and a Service?

What is the difference between the terms Factory, Provider and Service? 1 Answer 1 ...
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Can I change the color of auto detected links on UITextView?

I had a UITextView that detects phone numbers and links, but this overrides my fontColor and change it to blueColor . Is there a way to format the color of auto detected links, or should I try a manual version of this function? ...
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Add a CSS class to

My question is easy: 7 Answers 7 ...
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How do you comment out code in PowerShell?

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Query grants for a table in postgres

How can I query all GRANTS granted to an object in postgres? 7 Answers 7 ...
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Easy way to write contents of a Java InputStream to an OutputStream

I was surprised to find today that I couldn't track down any simple way to write the contents of an InputStream to an OutputStream in Java. Obviously, the byte buffer code isn't difficult to write, but I suspect I'm just missing something which would make my life easier (and the code clearer). ...