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What is a patch in git version control?
...iff tells us. Let's say I have two versions of this file, one called file1.txt and another one file2.txt, then I run diff and get this:
$ diff -u file1.txt file2.txt
--- file1.txt 2011-11-26 11:07:03.131010360 -0500
+++ file2.txt 2011-11-26 11:07:13.171010362 -0500
@@ -1,2 +1,2 @@
-This is lin...
Inserting a text where cursor is using Javascript/jquery
...
Use this, from here:
function insertAtCaret(areaId, text) {
var txtarea = document.getElementById(areaId);
if (!txtarea) {
return;
}
var scrollPos = txtarea.scrollTop;
var strPos = 0;
var br = ((txtarea.selectionStart || txtarea.selectionStart == '0') ?
"ff" : (...
How to combine paths in Java?
...lass is useful too. For example:
Path path = Paths.get("foo", "bar", "baz.txt");
If you need to cater for pre-Java-7 environments, you can use java.io.File, like this:
File baseDirectory = new File("foo");
File subDirectory = new File(baseDirectory, "bar");
File fileInDirectory = new File(subDir...
How do I create a file and write to it in Java?
...Creating a text file:
PrintWriter writer = new PrintWriter("the-file-name.txt", "UTF-8");
writer.println("The first line");
writer.println("The second line");
writer.close();
Creating a binary file:
byte data[] = ...
FileOutputStream out = new FileOutputStream("the-file-name");
out.write(data);
...
python setup.py uninstall
...t of installed files, you can use:
python setup.py install --record files.txt
Once you want to uninstall you can use xargs to do the removal:
xargs rm -rf < files.txt
Or if you're running Windows, use Powershell:
Get-Content files.txt | ForEach-Object {Remove-Item $_ -Recurse -Force}
T...
How to concatenate two MP4 files using FFmpeg?
...d by general users do not support file level concatenation).
$ cat mylist.txt
file '/path/to/file1'
file '/path/to/file2'
file '/path/to/file3'
$ ffmpeg -f concat -safe 0 -i mylist.txt -c copy output.mp4
For Windows:
(echo file 'first file.mp4' & echo file 'second file.mp4' )>list.txt
ff...
List all files and directories in a directory + subdirectories
...eperator+" ");
}
}
}
}
input directory:
-folder1
file1.txt
-folder2
file2.txt
-folder5
file6.txt
-folder3
file3.txt
-folder4
file4.txt
file5.txt
output of the function (content of folder5 is excluded due to lvl limit and content of folder3 is exc...
Windows batch: echo without new line
...write.special (
<nul set /p "=!%~1!"
exit /b
)
>"%$write.temp%_1.txt" (echo !str!!$write.sub!)
copy "%$write.temp%_1.txt" /a "%$write.temp%_2.txt" /b >nul
type "%$write.temp%_2.txt"
del "%$write.temp%_1.txt" "%$write.temp%_2.txt"
set "str2=!str:*%$write.sub%=%$write.sub%!"
if "!str2!" n...
How to process each line received as a result of grep command
...tly iterate over it with a while/read loop.
Something like:
grep xyz abc.txt | while read -r line ; do
echo "Processing $line"
# your code goes here
done
There are variations on this scheme depending on exactly what you're after.
If you need to change variables inside the loop (and have...
What Automatic Resource Management alternatives exist for Scala?
... lines: Try[Seq[String]] =
Using(new BufferedReader(new FileReader("file.txt"))) { reader =>
Iterator.unfold(())(_ => Option(reader.readLine()).map(_ -> ())).toList
}
or using Using.resource avoid Try
val lines: Seq[String] =
Using.resource(new BufferedReader(new FileReader("fi...