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Set environment variables on Mac OS X Lion
... me. I have no idea where these files are, how to create them if I have to do that, etc, and also why there seem to be so many different ones (why? Do they do different things?)
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How to check if an email address exists without sending an email?
...PT, and see if the mail is rejected.
MAIL FROM:<>
RCPT TO:<user@domain>
If the user doesn't exist, you'll get a 5.1.1 DSN. However, just because the email is not rejected, does not mean the user exists. Some server will silently discard requests like this to prevent enumeration of t...
How do I show my global Git configuration?
...long --list option. For less obvious shorthands I often have to check what do they stand for, so I prefer long names. They're even easier, with command completion, when you don't really have to type all characters, but still see whole option name.
– Krzysztof Jabłoński
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How to initialise memory with new operator in C++?
...h them all myself? Should I just use memset ? Is there a “C++” way to do it?
8 Answers
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How do I ignore the authenticity token for specific actions in Rails?
When I have a specific action that I don't want to check the authenticity token on, how do I tell Rails to skip checking it?
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How do I pipe or redirect the output of curl -v?
...-s (silent) option to remove the progress meter, then redirect stderr to stdout to get verbose output on the same fd as the response body
curl -vs google.com 2>&1 | less
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Why do we use Base64?
...t the case.
Originally a lot of different encodings were created (e.g. Baudot code) which used a different number of bits per character until eventually ASCII became a standard with 7 bits per character. However most computers store binary data in bytes consisting of 8 bits each so ASCII is unsuita...
How do you make Git ignore files without using .gitignore?
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Do not forget, according to gitignore, that there is an order of precedence in the different "ignore pattern sources" that Git consider:
Patterns read from the command line for those commands that support them.
Patterns rea...
How do I programmatically determine operating system in Java?
...like to be able to load different properties based on whether I am on a Windows or Unix platform). What is the safest way to do this with 100% reliability?
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How do I install a NuGet package .nupkg file locally?
..."Manage NuGet Packages" and select your new package source.
Here is the documentation.
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