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How do I check if a directory exists? “is_dir”, “file_exists” or both?
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Both would return true on Unix systems - in Unix everything is a file, including directories. But to test if that name is taken, you should check both. There might be a regular file named 'foo', which would prevent you from creating a directory name 'foo'.
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Copying files from host to Docker container
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The cp command can be used to copy files.
One specific file can be copied TO the container like:
docker cp foo.txt mycontainer:/foo.txt
One specific file can be copied FROM the container like:
docker cp mycontainer:/foo.txt foo.txt
For emphasis, mycont...
Find duplicate lines in a file and count how many time each line was duplicated?
Suppose I have a file similar to the following:
7 Answers
7
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Can a Windows batch file determine its own file name?
Can a Windows batch file determine its own file name?
6 Answers
6
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What do the result codes in SVN mean?
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For additional details see the SVNBook: "Status of working copy files and directories".
The common statuses:
U: Working file was updated
G: Changes on the repo were automatically merged into the working copy
M: Working copy is modified
C: This file conflicts with the v...
Check image width and height before upload with Javascript
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The file is just a file, you need to create an image like so:
var _URL = window.URL || window.webkitURL;
$("#file").change(function (e) {
var file, img;
if ((file = this.files[0])) {
img = new Image();
va...
Include another JSP file
...estions. :) I have tried using jsp:include tag. But at runtime, it gives a file not found error. Exception details:java.io.FileNotFoundException: /includes/&lt;%= p %&gt;.jsp. Looks like the <%= p %> is used as it is in the file path!
– Akhilesh B Chandran
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How do I run a Java program from the command line on Windows?
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Source: javaindos.
Let's say your file is in C:\mywork\
Run Command Prompt
C:\> cd \mywork
This makes C:\mywork the current directory.
C:\mywork> dir
This displays the directory contents. You should see
filenamehere.java among the...
How line ending conversions work with git core.autocrlf between different operating systems
... at least since v1.7.2 from what I am aware):
core.autocrlf = true
Text files checked-out from the repository that have only LF characters are normalized to CRLF in your working tree; files that contain CRLF in the repository will not be touched
Text files that have only LF characters in the repo...
How can I read a large text file line by line using Java?
I need to read a large text file of around 5-6 GB line by line using Java.
21 Answers
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