How do I create an empty file in emacs?
You can use the touch command: M-! touch __init__.py RET
file
How do I find the current directory of a batch file, and then use it for the path?
There is no need to know where the files are, because when you launch a bat file the working directory is the directory where it was launched (the “master folder”), so if you have this structure: .\mydocuments\folder\mybat.bat .\mydocuments\folder\subfolder\file.txt And the user starts the “mybat.bat”, the working directory is “.\mydocuments\folder”, so you only need to write … Read more
JVM property -Dfile.encoding=UTF8 or UTF-8?
It will be: UTF8 See here for the definitions.
How can I save a text block in visual mode to a file in Vim?
Select the text you wish to save, in either line visual or block visual mode, and :w new.txt That’s what you type, but you won’t actually see exactly what’s above. When you press :, you’ll go to the command line which will automatically get filled in with selection information. It’ll look something like this: :'<,’> … Read more
SQLite3 database or disk is full / the database disk image is malformed
To repair a corrupt database you can use the sqlite3 commandline utility. Type in the following commands in a shell after setting the environment variables: cd $DATABASE_LOCATION echo ‘.dump’|sqlite3 $DB_NAME|sqlite3 repaired_$DB_NAME mv $DB_NAME corrupt_$DB_NAME mv repaired_$DB_NAME $DB_NAME This code helped me recover a SQLite database I use as a persistent store for Core Data and … Read more
Lost code lines when Notepad++ crashed
When that option is enabled (and it is by default), Notepad++ keeps a backup copy of files you edit. You can find the backups in the directory %APPDATA%\Notepad++\backup under the format filename@datetime.
CMake check that a local file exists
The proper way to check if a file exists, if you already know the full path name to the file is simply: if(EXISTS “${ROOT}/configuration/${customer}/configuration.${project_name}.xml”) … else() … endif()
How do I create crossplatform file paths in Go?
For creating and manipulating OS-specific paths directly use os.PathSeparator and the path/filepath package. An alternative method is to always use “https://stackoverflow.com/” and the path package throughout your program. The path package uses “https://stackoverflow.com/” as path separator irrespective of the OS. Before opening or creating a file, convert the /-separated path into an OS-specific path string … Read more
How to limit the number of dropzone.js files uploaded?
I achieved this a slightly different way. I just remove the old dropped file any time a new file is added. It acts as overwriting the file which was the user experience I was going for here. Dropzone.options.myAwesomeDropzone = { accept: function(file, done) { console.log(“uploaded”); done(); }, init: function() { this.on(“addedfile”, function() { if (this.files[1]!=null){ … Read more
In MATLAB, can I have a script and a function definition in the same file?
As of release R2016b, you can have local functions in scripts, like so: data = 1:10; % A vector of data squaredData = f(data); % Invoke the local function function y = f(x) y = x.^2; end Prior to release R2016b, the only type of function that could be defined inside a MATLAB script was … Read more