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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Source multiline grep with pcregrep

Terminal - Source multiline grep with pcregrep
pcregrep --color -M -N CRLF "owa_pattern\.\w+\W*\([^\)]*\)" source.sql
2010-11-11 12:53:40
User: hute37
Source multiline grep with pcregrep

grep multiline in Perl regexp syntax with pcregrep


There are 3 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

without need to install grep variant pcregrep, you can do multiline search with grep.

grep -Pzo "(?s)^(\s*)\N*main.*?{.*?^\1}" *.c


-P activate perl-regexp for grep (a powerful extension of regular extensions)

-z supress newline at the end of line, subtituting it for null character. That is, grep knows where end of line is, but see input as a big one line.

-o print only matching. Because using -z, all file is like a big line, so if there is a match, all file would be printed, this way it don't.

in regexp:

(?s) activate PCRE_DOTALL, which means that '.' find any character or newline

\N find anything except newline, even with PCRE_DOTALL activated

.*? find '.' in nongreedy mode, that is, stops as soon as possible.

^ find start of line

\1 backreference to first group (\s*) This is a try to find same indentation of method

As you can imagine, this print the main method in a C (*.c) source file.

Comment by unixmonkey24864 276 weeks and 3 days ago

grep version is very cool ;)

i like the trick to match closing brace with backreferences ...

Comment by hute37 276 weeks and 2 days ago

Your point of view

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