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Unix shell script to truncate a large file
I am trying to write a Unix script which will truncate/empty a file which is continuously being written/open by an application when it reaches say 3GB of space. I know that the below command would do it :
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How to redirect stderr and stdout to different files in the same line in script?
...mpletion's sake, you can write 1> as just > since the default file descriptor is the output. so 1> and > is the same thing.
So, command 2> error 1> output becomes, command 2> error > output
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Editing Javascript using Chrome Developer Tools
I am trying to edit javascript on a site using Chrome's Developer Tools. I have read about 30 accounts of how to do this as well as watched a few videos. The fact is, when I go to the sources tab and open the file I want to edit, I can't do anything to it. Is there some step I am missing?
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jQuery SVG, why can't I addClass?
...: black;
stroke-width: 5;
}
svg circle.green {
fill: green;
}
<script src="https://code.jquery.com/jquery-3.0.0.min.js"></script>
<svg>
<circle cx="50" cy="50" r="25" />
</svg>
The Problem:
The reason the jQuery class manipulation functions do not w...
Detect Chrome extension first run / update
...ion was unsuspended, the onInstalled event never fired and thus the update script never ran. Worth mentioning for those who run update scripts onInstalled, you might need to listen for a different event in situations where you have requested a new permission.
– Elimn
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Can I get chrome-devtools to actually search all JS sources?
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Yeah, if you want to search within content sources which are scripts used by extensions and the internal browser API, you enable it in the Settings of DevTools and then from any panel in DevTools you can type Ctrl + Shift + F or (on Mac) Options + Command + F (⌥⌘F) to search across...
Differences between detach(), hide() and remove() - jQuery
...;
<div class="goodevening">good evening</div>
</div>
<script>
$("div.hai").empty();
</script>
This will result in a DOM structure with the Hai text deleted:
<div class="content">
<div class="hai"></div>
<div class="goodevening">good evenin...
How long do browsers cache HTTP 301s?
...ubmit a post form on that url and the cached redirect is gone :)
<body onload="document.forms[0].submit()">
<form action="https://forum.pirati.cz/unreadposts.html" method="post">
<input type="submit" value="fix" />
</form>
</body>
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Code coverage with Mocha
...the command nyc in front of your existing test command, for example:
{
"scripts": {
"test": "nyc mocha"
}
}
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What's the difference between process.cwd() vs __dirname?
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__dirname returns the directory name of the directory containing the JavaScript source code file
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