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How to permanently export a variable in Linux?
I am running RHEL6, and I have exported an environment variable like this:
6 Answers
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Cannot run Eclipse; JVM terminated. Exit code=13
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It may just be the way the error shows (and not how it is written in the eclipse.ini file), but there is text in Eclipse.ini (Specifying the JVM) that says the following:
The -vm option and its value (the path) must be on separate lines.
The valu...
Read a variable in bash with a default value
...tion
What does the :-Richard part do? From the bash manual:
${parameter:-word}
If parameter is unset or null, the expansion of word is substituted. Otherwise, the value of parameter is substituted.
Also worth noting that...
In each of the cases below, word is subject to tilde expansion, parameter...
Comparison of CI Servers? [closed]
I am searching for a comparison of different
continuous integration (CI) Servers (esp. focusing
on .NET) and couldn't find any.
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Difference between const & const volatile
...d as const volatile will not be permitted to be changed by the code (an error will be raised due to the const qualifier) - at least through that particular name/pointer.
The volatile part of the qualifier means that the compiler cannot optimize or reorder access to the object.
In an embedded syste...
CSS to line break before/after a particular `inline-block` item
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I've been able to make it work on inline LI elements. Unfortunately, it does not work if the LI elements are inline-block:
Live demo: http://jsfiddle.net/dWkdp/
Or the cliff notes version:
li {
display: inline;
}
li:nth-child(3):after {
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Convert a Unix timestamp to time in JavaScript
I am storing time in a MySQL database as a Unix timestamp and that gets sent to some JavaScript code. How would I get just the time out of it?
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Save plot to image file instead of displaying it using Matplotlib
...ke to add some useful tips when using matplotlib.pyplot.savefig. The file format can be specified by the extension:
from matplotlib import pyplot as plt
plt.savefig('foo.png')
plt.savefig('foo.pdf')
Will give a rasterized or vectorized output respectively, both which could be useful. In addition...
javascript set a variable if undefined
I know that I can test for a javascript variable and then define it if it is undefined, but is there not some way of saying
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Get users by name property using Firebase
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Previously, Firebase required you to generate your own indexes or download all data at a location to find and retrieve elements that matched some child attribute (for example, all users with name === "Alex").
In October 2014, Firebase rolled out new querying functionality via the orderB...