How do I convert file size to mb only in JavaScript?
var sizeInMB = (sizeInBytes / (1024*1024)).toFixed(2); alert(sizeInMB + ‘MB’);
filesystems
Does HTML5 allow you to interact with local client files from within a browser
No, not directly at least. However, you have a number of choices here. Currently your best choices are: Drag and drop files from desktop, see a tutorial. (Link disabled for malware/phishing) Use input type file. Read the contents with the File API or submit the form. Read more on Mozilla Developer Center about reading the … Read more
How expensive is File.exists in Java
Measure the necessary time and see yourself. As you say it is absolutely file system dependent. long t1 = System.currentTimeMillis(); …Your File.exists call long t2 = System.currentTimeMillis(); System.out.println(“time: ” + (t2 – t1) + ” ms”); You will see that it will always give you different results, since it depends also on the way your … Read more
How to determine whether to use or ?
I typically create a header filesystem.hpp with the following content: // We haven’t checked which filesystem to include yet #ifndef INCLUDE_STD_FILESYSTEM_EXPERIMENTAL // Check for feature test macro for <filesystem> # if defined(__cpp_lib_filesystem) # define INCLUDE_STD_FILESYSTEM_EXPERIMENTAL 0 // Check for feature test macro for <experimental/filesystem> # elif defined(__cpp_lib_experimental_filesystem) # define INCLUDE_STD_FILESYSTEM_EXPERIMENTAL 1 // We can’t check … Read more
Apple File System (APFS) Check if file is a clone on Terminal (shell)
After 3 years and 2 months… I received a lot of points because of this question here on stackoverflow. So yesterday I decided to revisit this topic :). Using fcntl and F_LOG2PHYS is possible to check if files are using same physical blocks or not. So I made an utility using this idea and put … Read more
How do I get the path and name of the python file that is currently executing?
__file__ as others have said. You may also want to use os.path.realpath to eliminate symlinks: import os os.path.realpath(__file__)
Get containing path of lua file
This is a more elegant way: function script_path() local str = debug.getinfo(2, “S”).source:sub(2) return str:match(“(.*/)”) end print(script_path())
When is it okay to check if a file exists?
The File.Exists method exists primarily for testing for the existence of a file when you do not intend to open the file. For example testing for the existence of a locking file whose very existence tells you something but whose contents are immaterial. If you are going to open the file then you will need … Read more
How to find duplicate files with same name but in different case that exist in same directory in Linux?
The other answer is great, but instead of the “rather monstrous” perl script i suggest perl -pe ‘s!([^/]+)$!lc $1!e’ Which will lowercase just the filename part of the path. Edit 1: In fact the entire problem can be solved with: find . | perl -ne ‘s!([^/]+)$!lc $1!e; print if 1 == $seen{$_}++’ Edit 3: I … Read more