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How do I verify/check/test/validate my SSH passphrase?
...key pair, with or without a passphrase:
$ ssh-keygen -f /tmp/my_key
...
Now see if you can access the key pair:
$ ssh-keygen -y -f /tmp/my_key
Following is an extended example, showing output.
Create a new public/private key pair, with or without a passphrase:
$ ssh-keygen -f /tmp/my_key
G...
displayname attribute vs display attribute
...
Good to know! Was about to implement a custom attribute to load the display value from the .resx file, then happened on this question. Display attribute is the way to go when developing localized applications.
– ...
When should I use Memcache instead of Memcached?
...s named memcache and memcached . What is the difference and how do you know which one to use? Is one outdated? It seems that memcached offers more methods so I would assume that means it has had the most development - but it also seems to require external C/C++ libraries so I'm not sure if I ca...
How do I show the value of a #define at compile-time?
...
I know that this is a long time after the original query, but this may still be useful.
This can be done in GCC using the stringify operator "#", but it requires two stages.
#define XSTR(x) STR(x)
#define STR(x) #x
The value...
config.assets.compile=true in Rails production, why not?
...Also, someone would have to pay the price of slow asset delivery for an unknown period of time until all the assets are compiled and in place.
The default, where the price of compiling everything is paid off-line at one time, does not impact public visitors and ensures that everything works before ...
Five equal columns in twitter bootstrap
...all change to col-xs-6 in responsive view.
For Bootstrap 4
Bootstrap 4 now uses flexbox by default, so you get access to its magical powers straight out of the box. Check out the auto layout columns that dynamically adjust width depending on how many columns are nested.
Here's an example:
<...
How to throw an exception in C?
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@Steve: Please let me know if you find a language with unicorns, I've been waiting for such a thing for years.
– Brian R. Bondy
May 23 '10 at 23:03
...
Run java jar file on a server as background process
... Short answer: it depends on the server. Long answer: as far as I know, there is no safe way to shut down a process without the process supporting such graceful shut downs. For example, if it's a web server being terminated by an external signal, there is always a possibility that some reque...
How to compare only Date without Time in DateTime types in Linq to SQL with Entity Framework?
...this in order to work with LINQ.
DateTime date_time_to_compare = DateTime.Now;
//Compare only date parts
context.YourObject.FirstOrDefault(r =>
EntityFunctions.TruncateTime(r.date) == EntityFunctions.TruncateTime(date_to_compare));
If you only use dtOne.Date == dtTwo.Date it wo...
Get elements by attribute when querySelectorAll is not available without using libraries?
...ment.querySelectorAll('[someAttr]')
to find elements by attribute. It's now supported in all relevant browsers (even IE8): http://caniuse.com/#search=queryselector
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