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Is it safe to parse a /proc/ file?

.../proc/mounts was a consistent snapshot. For example: /proc/uptime is totally atomic, as someone mentioned in another answer -- but only since Linux 2.6.30, which is less than two years old. So even this tiny, trivial file was subject to a race condition until then, and still is in most enterpris...
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PHP Function Comments

...peat How many times something interesting should happen * * @throws Some_Exception_Class If something interesting cannot happen * @author Monkey Coder <mcoder@facebook.com> * @return Status */ Classes: /** * Short description for class * * Long description for class (if any)... *...
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Trouble comparing time with RSpec

...olution. I think it's easier and more reliable to just create the date manually: it "updates updated_at attribute" do freezed_time = Time.utc(2015, 1, 1, 12, 0, 0) #Put here any time you want Timecop.freeze(freezed_time) do patch :update @article.reload expect(@article.updated_at).t...
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What does @: (at symbol colon) mean in a Makefile?

...nd nothing gets done. For example (from Linux's scripts/Makefile.clean): __clean: $(subdir-ymn) ifneq ($(strip $(__clean-files)),) +$(call cmd,clean) endif ifneq ($(strip $(__clean-dirs)),) +$(call cmd,cleandir) endif ifneq ($(strip $(clean-rule)),) +$(clean-rule) endif @: ...
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How can I get the latest JRE / JDK as a zip file rather than EXE or MSI installer? [closed]

... of JDK from Oracle (for example jdk-7u7-windows-x64.exe) Download and install 7-Zip (or download 7-Zip portable version if you are not administrator) With 7-Zip extract all the files from jdk-XuXX-windows-x64.exe into the directory C:\JDK Execute the following commands in cmd.exe: cd C:\JDK\.rsrc...
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MFC Grid control 2.27 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术

...ch and useable as something of this form can be. Dozens of developers from all over the world have contributed fixes, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that ...
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Python matplotlib multiple bars

How to plot multiple bars in matplotlib, when I tried to call the bar function multiple times, they overlap and as seen the below figure the highest value red can be seen only. How can I plot the multiple bars with dates on the x-axes? ...
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Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”

... Copying the content from the above link for quick reference: #define PEM_STRING_X509_OLD "X509 CERTIFICATE" #define PEM_STRING_X509 "CERTIFICATE" #define PEM_STRING_X509_PAIR "CERTIFICATE PAIR" #define PEM_STRING_X509_TRUSTED "TRUSTED CERTIFICATE" #define PEM_STRING_X509_REQ_OLD "NEW CERTI...
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Is there a way to tell git to only include certain files instead of ignoring certain files?

My programs generally generate huge output files (~1 GB) which I do not want to be backing up to the git repository. So instead of being able to do ...
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libpng warning: iCCP: known incorrect sRGB profile

...geMagick's convert in.png out.png To remove the invalid iCCP chunk from all of the PNG files in a folder (directory), you can use mogrify from ImageMagick: mogrify *.png This requires that your ImageMagick was built with libpng16. You can easily check it by running: convert -list format | gre...