Questions tagged [file]
A block of arbitrary information, or resource for storing information, accessible by the string-based name or path. Files are available to computer programs and are usually based on some kind of persistent storage.
817 questions
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Managing file paths in a python Data Science project
When doing Data Science projects, I often have to load data and metadata, and output results, plots, logs, etc.
Therefore I have to handle all the file paths from where to load the input and write the ...
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Get histogram of bytes in any set of files in Java - take III
(This post is the continuation of Get histogram of bytes in any set of files in Java - take II.)
This time my code looks like as follows:
...
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Get histogram of bytes in any set of files in Java - take II
Intro
This post is the continuation of Get histogram of bytes in any set of files in Java. This time, I have incorporated all (?) the suggestions provided by Alexander Ivanchenko.
The entire ...
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Get histogram of bytes in any set of files in Java
Intro
(This post has a continuation at Get histogram of bytes in any set of files in Java - take II.)
This time I decided to rewrite the byte histogram counters in C++ [1][2][3] to Java. Usage is the ...
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Get histogram of bytes in any set of files in C++20
Intro
This post is the continuation of Get histogram of bytes in any set of files in C++14 - take II. This time, I have incorporated almost all suggestions in the answers.
Code
My newest trial looks ...
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Get histogram of bytes in any set of files in C++14 - take II
Intro
(This post is the continuation of Get histogram of bytes in any set of files in C++14.)
This time I have added some ASCII art for visualizing the histogram. Also, if the program is invoked ...
- 29.8k
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3
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Get histogram of bytes in any set of files in C++14
Intro
(This post has a continuation Get histogram of bytes in any set of files in C++14 - take II.)
For the sake of practice, I wrote this short program. It asks any set of file names and it produces ...
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4
votes
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AES-256 file encryption in c#
I recently needed to write a portion of code to encrypt file to AES-256 in C# language.
Since I did not find ready implementations of it, apart from string encryption, and since I'm very far from ...
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1
answer
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Determining the value of PATH_MAX on UNIX-like systems
Below is the approach taken in the function allocpath() in the book "Advanced Programming in Unix Environment", which I have modified to simply determine ...
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votes
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answer
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Creating random music covers using Conways Game of Life algorithm
(A sample cover art follows.)
I'm currently working on replacing all the covers of my music files to have a unified theme, and I've started this project in Java to refresh my knowledge after a gap of ...
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2
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Checking file header for magic number in Python
I wrote this to check files for successful compression with LZ4.
Any advice is welcome.
Particularly regarding raising exceptions and error handling.
...
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answers
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Advent of Code 2023 day 1: Trebuchet in C (part 2)
Problem description from the Advent of Code website:
Part 1:
The task involves analyzing a calibration document containing lines of text. Each line represents a calibration value that needs to be ...
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4
votes
2
answers
386
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Count the frequencies of each word in a file
I have tried to implement a code that does the following:
store words in an array (unordered)
use function order_array() to place repetitions for the same word ...
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6
votes
2
answers
649
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C- Reading and Parsing textfile
I'm relatively new to C programming and currently tackling exercises on Advent of Code. The challenge I'm working on involves calculating the sum of integers within each group from a file and ...
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Handling exceptions of FileInputStream and XSSFWorkbook
Can you tear my code apart with code review comments?
Below is a simple method which reads an XLSX file and does some stuff with it.
I use FileInputStream and ...
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3
votes
1
answer
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Program using java.io that shows the content of a text file and every three lines the program stop reading, waiting to press Enter
I am doing a program in Java your text using java.io that shows the content of a text file and every three lines the program stop reading, waiting to press Enter. I dont know so much about programming,...
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2
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Add offset to all filenames
From all the files in a directory, the method shiftFilenamesOffset is to increment the numeric part (int) of the alphanumeric filename by offset each time, and ...
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Ruby-function for reading, parsing a text-file, removing data-duplicates
Task description:
Implement a generate_unique_phone_numbers function.
The function shall parse the given text-file.
Content-example:
...
- 4,516
2
votes
1
answer
417
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Swift-function: Copy directory recursively
Task description:
Implement a function, which accepts two paths: The path to a source-directory & the path to a target-directory. The function shall return true if the directory has become copied ...
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vote
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Print last lines of file
Task
Write a Ruby function, which accepts a path to a text file and returns a string consisting of the last n lines in reversed order, separated by commas.
Example input file:
...
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Find out all the different files from two different paths efficiently in Windows (with Python)
Well, recently I'm working on a program which is able to sync files between different folders.
However, as a fresh man, the algorithm I worte seems feasible, but looks really disgusting, and ...
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votes
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187
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Increasing writing speed to file inside a for-loop for large files
I have a .csv file containing 100 millions records, I would to create multiple files from this file, after certain condition satisfied in each line, I came to this code below, but it is slow, I think, ...
- 309
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vote
1
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363
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Replacing NOUNS, VERBS, ADJECTIVES in a text file with input words
I've written code for a program that reads a text file, checking if there's any capitalized parts of speech of specific types (noun, adj, verb, adv) in the text and replace them with the user's chosen ...
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ds - A directory switcher via tags in Windows command line
I have this repository.
The idea is that there is a file tags sitting in the users home directory, and which contains the tag declarations of the format ...
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4
votes
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148
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System Utility to Create Random Files
The following program makes random files. By default, they are of the form /tmp/rfile-XXX. Certain options allow for the user to specify where these files are ...
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2
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Checking which programs are used for scripting
I have a directory where there are some script files, some binary files, and some subdirectories. I have tried to write a program which gets names of all files in directory, and excludes if they are ...
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2
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496
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Copy file with text replacement
I am currently learning C++. I coded a tiny program for school and I wonder if there could be issues (like bugs or security issues) with it.
Any ways to make it have weird behaviours would be very ...
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1
answer
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Implement Seek on /dev/stdin file descriptor in Rust
Problem: In order to be able to use the arrow crate's infer_file_schema function with input piped to ...
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2
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Geting file-names from the current working directory
The following routine returns the file-names from the current working directory:
...
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1
answer
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Delete files with specific filename pattern in directory with all extension using python
Preamble
The first following code explains the context.
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votes
1
answer
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SImple Inverted Index
This is a simple inverted index I made.
The goal is to:
Read set of text files from a directory, docs
Tokenize them
Normalize the tokens by removing punctuation ...
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answer
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Number Plate Generation Program
I wrote a number plate generation program. The program generates number plates for a car registered with a specific Memory Tag and on a specific date.
Number plates use the following format: (2 letter ...
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Logger that writes to text file with std::vformat
This class has a Log function that appends text to a log text file. It takes a format string and a variable amount of arguments, much like a ...
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FileIO lines to String Converter
I think I made a good FileIO object because I can simply copy-paste whenever I need, however I wonder How I can improve my code.
This code takes file path of the target file and turns every line to ...
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Opening a directory as a file descriptor creating it if it does not exist [closed]
Variables:
conf of type struct Conf whose details are not relevant to this review stores the configuration data being read.
<...
user265757
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A simple and fast library/code to store & manage variable data
I've been searching through the different ways to store data and found some helpful and actually great libs like:
JSON
XML
And some neh:
text file basic write and read
some binary type data storing?...
user264933
7
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1
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207
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Command-line correlation calculator in Java
I have this Java program that asks for a name of the file containing data rows in the format $$
x_1\ y_1 \\
x_2\ y_2 \\
\vdots \\
x_n\ y_n
$$, and outputs on the command line the Pearson correlation ...
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Sending and receiving files in C win32 using a socket
I have a piece of code to send and receive files on Windows with C. Is this the right way to do it? And am I guaranteed that the full file will be sent and received?
Receiving function:
...
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1
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Python Function that Replicates a Directory's File-Tree for Specific File Types while Changing the Parent Directory
Problem Context: I needed to make a script that would search through all the files in a GitHub Repo and find all the README files within it, then replicate the File-Tree of the Repo to a specified ...
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duplicate an open file descriptor [closed]
My program implements a function similar to `dup2'. I would like you to please find any problems with the code and what I could improve.
code:
...
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1
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File Abstraction Library
This library is a layer of abstraction over file operations in C#. It aims to provide easy file IO syntax, and implicit error handling behaviors, to ensure robustness in scenarios including, but not ...
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0
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Simple diff utility in Java using OOP take 2
(See the previous iteration here.)
After further revising my code, I have:
com.github.coderodde.diff.Diff.java:
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2
votes
1
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Simple diff utility in Java using OOP
(Previous and initial iteration lives here.)
(The next iteration is here.)
Now I was able to spare some lines by putting diff related state in an object. Also, I relied on ...
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6
votes
2
answers
994
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Simple diff utility in Java
(See the next and second iteration here.)
I have this toy implementation of the diff utility in Java:
...
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vote
1
answer
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Open a file, with a fallback path if it doesn't exist at one location
I am parsing a file that exists in either app/components/ui or in app/components. If the one in the first dir (...
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File dump in assembly
This is a file dump program written in assembly that displays 320 bytes at a time in 20 lines.
It shows the hex code for each character and also the string
At the start of the program it asks for the ...
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Adding string to a text file without duplicates
I have a function below, store_in_matchid_file, and it adds certain strings to a .txt file as long as that string doesn't already exist in the file. However that ...
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touch command in C
I wrote a program in C that simulates the touch command from linux.
I would like to ask you to criticize my implementation, to find bugs in particular
...
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2
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No Reference Image Quality Assessment for Video in Matlab
I am trying to perform the No-Reference Image Quality Assessment (NR-IQA) calculation on video. Several NR-IQA methods including Naturalness Image Quality Evaluator (NIQE), Perception based Image ...
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1
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Unit tests for PNGme steganography exercise in Rust
I want to become proficient in Rust and I've followed the PNGme exercise. I've completed it up until Chapter 4 included, where I've written a lot of tests myself for verifying that the command line ...
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