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Top Forums UNIX for Advanced & Expert Users Interesting awk/Perl/sed parsing challenge Post 302846345 by glev2005 on Friday 23rd of August 2013 02:36:58 PM
Old 08-23-2013
Interesting awk/Perl/sed parsing challenge

I have a log with entries like:

Code:
out/target/product/imx53_smd/obj/STATIC_LIBRARIES/libwebcore_intermediates/Source/WebCore/bindings/V8HTMLVideoElement.cpp
[22:14:58]: target thumb C++: libwebcore <= out/target/product/imx53_smd/obj/STATIC_LIBRARIES/libwebcore_intermediates/Source/WebCore/bindings/V8ImageData.cpp
[22:14:59]: target thumb C++: libwebcore <=

If you notice the time stamps between the brackets.. what I need to do is parse this whole log (tens of thousands of lines) for the biggest gaps between any two consecutive time stamps. The time spans about 3.5 hours so the minutes column will be reset back to 0. I just want to know where the biggest delays occur in this build.
 

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cxref-cpp(1)						      General Commands Manual						      cxref-cpp(1)

NAME
cxref-cpp - A modified C preprocessor to use with cxref. SYNOPSIS
cxref-cpp ... DESCRIPTION
To improve the output that is available for the source code for cross-referencing a modified version of the GNU CPP v2.7.2 is supplied (named cxref-cpp). This modified C preprocessor allows for a finer control over some features of the preprocessing that are not important for a compiler. In a standard preprocessor, the preprocessor directives are intended for use only by the preprocessor, so passing the information through is not important. With cxref-cpp, there are some features that are different to the standard GNU CPP: Compared to gcc versions earlier than version 2.8.0 there is an extra option that will output the #include lines from the source file. In version 2.8.0 and later this option is present. Comments trailing a #include or a #define are not preserved by all versions of gcc even if the -C option is used. This is not important while compiling, but is useful for documenting. The cxref-cpp program will take on the personality of the installed version of gcc so that the gcc header files can be parsed. This means that it includes the same default include directory paths and macro definitions. The file that contains these definitions is called cxref-cpp.defines and is installed by the cxref-cpp-configure program or specified by the -cxref-cpp-defines command line option. OPTIONS
The same as for gcc, apart from '-cxref-cpp-defines' described above. SEE ALSO
cxref(1), cxref-cpp-configure(1), gcc(1) May 9, 2004 cxref-cpp(1)
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