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How to check whether a file or directory exists?

...If I told you "Simple way to get rich quick: put money in bank. take money from bank." you would think I was telling you that there were two serial steps required rather than two alternative steps. The problem with this answer is that readers may not understand that you are suggesting two different...
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How to do a recursive find/replace of a string with awk or sed?

... +: This variant of the -exec action runs the specified command on the selected files, but the command line is built by appending each selected file name at the end; the total number of invocations of the command will be much less than the number of matched files. ...
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Should I compile with /MD or /MT?

...nes _MT so that multithread-specific versions of the run-time routines are selected from the standard header (.h) files. This option also causes the compiler to place the library name LIBCMT.lib into the .obj file so that the linker will use LIBCMT.lib to resolve external symbols. Either /MT or /MD ...
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How far can memory leaks go?

...you unload the program. So you can consider this to be another case apart from OSes not reclaiming memory either because it's buggy or because the embedded OS is designed to do so. I remember one more example. Customer Information Control System (CICS), a transaction server which runs primarily on...
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Does ruby have real multithreading?

...JVM Threads as OS Threads and some as Green Threads. (The mainstream JVMs from Sun/Oracle use exclusively OS threads since JDK 1.3) XRuby also implements Ruby Threads as JVM Threads. Update: XRuby is dead. IronRuby implements Ruby Threads as Native Threads, where "Native Threads" in case of the CL...
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Showing line numbers in IPython/Jupyter Notebooks

... Select the Toggle Line Number Option from the View -> Toggle Line Number. share | improve this answer | ...
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How are POST and GET variables handled in Python?

...est.POST['username'] # for POST form method Using Turbogears, Cherrypy: from cherrypy import request print request.params['username'] Web.py: form = web.input() print form.username Werkzeug: print request.form['username'] If using Cherrypy or Turbogears, you can also define your handler f...
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Download large file in python with requests

... @Shuman As I see you resolved the issue when switched from http:// to https:// (github.com/kennethreitz/requests/issues/2043). Can you please update or delete your comments because people may think that there are issues with the code for files bigger 1024Mb ...
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Where is Java Installed on Mac OS X?

I just downloaded Java 7u17 on Mac OS 10.7.5 from here and then successfully installed it. In order to do some JNI programming, I need to know where Java installed on my Mac. ...
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Remove redundant paths from $PATH variable

...es. If you want to have just the String, remove $PATH + the semicolon (:) from your command. It doesn't matter if you use echo or edit the file ~/.bashrc by hand. – hovanessyan Jul 25 '12 at 13:47 ...