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How to concatenate stdin and a string?
... pipe to accept stdout from echo "input" as stdin to another process / command:
echo "input" | awk '{print $1"string"}'
Output:
inputstring
What task are you exactly trying to accomplish? More context can get you more direction on a better solution.
Update - responding to comment:
@NoamRoss
...
Relationship between hashCode and equals method in Java [duplicate]
...ctions where unicity of elements is calculated according to both .equals() and .hashCode(), for instance keys in a HashMap.
As its name implies, it relies on hash tables, and hash buckets are a function of the object's .hashCode().
If you have two objects which are .equals(), but have different ha...
Firefox session cookies
....org/show_bug.cgi?id=443354
Firefox has a feature where you close Firefox and it offers to save all your tabs, and then you restore the browser and those tabs come back. That's called session restore. What I didn't realize is that it'll also restore all the session cookies for those pages too! It t...
C++ performance challenge: integer to std::string conversion
...e very fast, can take 100 clockticks when linking CRT as a static library, and as much as 300 clockticks when linking as a DLL.
For the same reason, returning by reference is better because it avoids an assignment, a constructor and a destructor.
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jQuery on window resize
...
Here's an example using jQuery, javascript and css to handle resize events.
(css if your best bet if you're just stylizing things on resize (media queries))
http://jsfiddle.net/CoryDanielson/LAF4G/
css
.footer
{
/* default styles applied first */
}
@media scre...
Possible to perform cross-database queries with PostgreSQL?
...m going to guess that the answer is "no" based on the below error message (and this Google result ), but is there anyway to perform a cross-database query using PostgreSQL?
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pypi UserWarning: Unknown distribution option: 'install_requires'
...upport install_requires. setuptools does, also distribute (its successor), and pip (which uses either) do. But you actually have to use them. I.e. call setuptools through the easy_install command or pip install.
Another way is to import setup from setuptools in your setup.py, but this not standard...
Is #pragma once a safe include guard?
...a once which can result in faster compilation. I recognize that is non-standard, and thus could pose a cross-platform compatibility issue.
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Git submodule head 'reference is not a tree' error
...that is pointing to an invalid commit: the submodule commit remained local and when I try to fetch it from another repo I get:
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Overriding the java equals() method - not working?
I ran into an interesting (and very frustrating) issue with the equals() method today which caused what I thought to be a well tested class to crash and cause a bug that took me a very long time to track down.
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