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Select random lines from a file
In a Bash script, I want to pick out N random lines from input file and output to another file.
4 Answers
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Clear android application user data
...on Data Please Try this way.
public void clearApplicationData() {
File cache = getCacheDir();
File appDir = new File(cache.getParent());
if (appDir.exists()) {
String[] children = appDir.list();
for (String s : children) {
if (!s.equals("lib")) {
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How to prevent http file caching in Apache httpd (MAMP)
...ingle page Javascript application in MAMP. My JavaScript and HTML template files are getting cached between requests.
5 Ans...
Get encoding of a file in Windows
...and line or Windows tool (Windows 7) to get the current encoding of a text file? Sure I can write a little C# app but I wanted to know if there is something already built in?
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How do I find files that do not contain a given string pattern?
How do I find out the files in the current directory which do not contain the word foo (using grep )?
16 Answers
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MVC 4 Razor File Upload
I am new to MVC 4 and I am trying to implement File Upload Control in
my website. I am not able to find the mistake.I am getting a null
value in my file.
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Very simple log4j2 XML configuration file using Console and File appender
I'd like a very simple XML configuration file with a console and a file appender using log4j2.
4 Answers
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How to save a BufferedImage as a File
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File outputfile = new File("image.jpg");
ImageIO.write(bufferedImage, "jpg", outputfile);
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How to view revision history for Mercurial file?
For a given file in a Mercurial repository, how can you see the revision history?
4 Answers
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Using .NET, how can you find the mime type of a file based on the file signature not the extension
I am looking for a simple way to get a mime type where the file extension is incorrect or not given, something similar to this question only in .Net.
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