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How to search file text for a pattern and replace it with a given value

...ull. This code is not fit for anything beyond a quick one-off script where all the data is backed up. For that reason, do NOT copy this code into your programs. Here's a quick short way to do it. file_names = ['foo.txt', 'bar.txt'] file_names.each do |file_name| text = File.read(file_name) ne...
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How do I determine if my python shell is executing in 32bit or 64bit?

...test for older systems, this slightly more complicated test should work on all Python 2 and 3 releases: $ python-32 -c 'import struct;print( 8 * struct.calcsize("P"))' 32 $ python-64 -c 'import struct;print( 8 * struct.calcsize("P"))' 64 BTW, you might be tempted to use platform.architecture() fo...
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Why JSF calls getters multiple times

...e getter method behind the expression is executed everytime when the code calls ValueExpression#getValue(). This will normally be invoked one or two times per JSF request-response cycle, depending on whether the component is an input or output component (learn it here). However, this count can get ...
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Block Declaration Syntax List

...at this is distinct from "Blocks as Parameters"; in this instance, you're calling a method that wants a block argument with an anonymous block. If you have already declared a block variable, it is sufficient to pass the variable name as the argument. [someObject doSomethingWithBlock: ^return_type (...
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How do I view the list of functions a Linux shared library is exporting?

...AL DEFAULT UND 1: 00000000 0 FUNC GLOBAL DEFAULT UND pthread_mutex_unlock@GLIBC_2.0 (4) 2: 00000000 0 FUNC GLOBAL DEFAULT UND pthread_mutex_destroy@GLIBC_2.0 (4) 3: 00000000 0 NOTYPE WEAK DEFAULT UND _ITM_deregisterTMCloneTable 4: 00000000 0 FUNC ...
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Fancybox doesn't work with jQuery v1.9.0 [ f.browser is undefined / Cannot read property 'msie' ]

... by navigator.userAgent.match(/msie [6]/i) around line 615 (and/or replace all $.browser.msie instances, if any), thanks joofow ... that's it! Or download the already patched version from HERE (UPDATED March 19, 2013 ... thanks fairylee for pointing out the extra closing bracket) NOTE: this is an...
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Repeat a task with a time delay?

...er()); private Runnable mStatusChecker; private int UPDATE_INTERVAL = 2000; /** * Creates an UIUpdater object, that can be used to * perform UIUpdates on a specified time interval. * * @param uiUpdater A runnable containing the update ro...
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Initializing a struct to 0

... The first is easiest(involves less typing), and it is guaranteed to work, all members will be set to 0[Ref 1]. The second is more readable. The choice depends on user preference or the one which your coding standard mandates. [Ref 1] Reference C99 Standard 6.7.8.21: If there are fewe...
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UTF-8 all the way through

... this in the past on existing servers and always seem to end up having to fall back to ISO-8859-1. 15 Answers ...
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Advantage of switch over if-else statement

... the average case) or simply build a jump-table (works without compares at all). share | improve this answer | follow | ...