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What is RSS and VSZ in Linux memory management
...Resident Set Size and is used to show how much memory is allocated to that process and is in RAM. It does not include memory that is swapped out. It does include memory from shared libraries as long as the pages from those libraries are actually in memory. It does include all stack and heap memor...
How to change the port of Tomcat from 8080 to 80?
I want to execute my web app as http://localhost .
14 Answers
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Creating anonymous objects in php
As we know, creating anonymous objects in JavaScript is easy, like the code below:
12 Answers
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More elegant “ps aux | grep -v grep”
When I check list of processes and 'grep' out those that are interesting for me, the grep itself is also included in the results. For example, to list terminals:
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Why are Where and Select outperforming just Select?
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Select iterates once over the entire set and, for each item, performs a conditional branch (checking for validity) and a + operation.
Where+Select creates an iterator that skips invalid elements (doesn't yield them), performing a + only on the valid items.
So, the cost for a Select i...
How to open, read, and write from serial port in C?
I am a little bit confused about reading and writing to a serial port. I have a USB device in Linux that uses the FTDI USB serial device converter driver. When I plug it in, it creates: /dev/ttyUSB1.
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Convert HH:MM:SS string to seconds only in javascript
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Try this:
var hms = '02:04:33'; // your input string
var a = hms.split(':'); // split it at the colons
// minutes are worth 60 seconds. Hours are worth 60 minutes.
var seconds = (+a[0]) * 60 * 60 + (+a[1]) * 60 + (+a[2]);
console.log(seconds);
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Android: Coloring part of a string using TextView.setText()?
... text of a TextView view via the .setText("") method while also coloring a part of the text (or making it bold, italic, transparent, etc.)and not the rest. For example:
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Remove directory which is not empty
In my Node application I need to remove a directory which has some files, but fs.rmdir only works on empty directories. How can I do this?
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Get properties and values from unknown object
From the world of PHP I have decided to give C# a go. I've had a search but can't seem to find the answer of how to do the equivalent to this.
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