File manager

The app is a file manager system built with native Node.js APIs

Functionality

• Works using CLI
• Performs basic file operations (copy, move, delete, rename, etc.)
• Utilizes Streams API
• Gets information about the host machine operating system
• Performs hash calculations
• Compresses and decompresses files

To run the app you need to:

1. Clone this repository to your local machine;
2. Go to file-manager branch using git checkout file-manager command;
3. Run npm run start -- --username=your_username where your_username is an actual username you want to provide to the app.

Commands description

If you want to use pathes with spaces you need to wrap a path into double quoutation marks like this: cat "my complicated folder/my cool file.txt" For one-word pathes dobule quotations are not required.

• Navigation & working directory:

  • up: Go upper from current directory;
  • cd path_to_directory: Go to dedicated folder from current directory (path_to_directory can be relative or absolute);
  • ls: Prints in console list of all files and folders in current directory. List contains:
    • files and folder names (for files - with extension);
    • folders and files are sorted in alphabetical order ascending, but list of folders goes first;
    • type of directory content is marked explicitly (e.g. as a corresponding column value).

• Basic operations with files:

  • cat path_to_file: Reads file and prints it's content in console;
  • add new_file_name: Creates empty file in current working directory (no exact path is required, just write a filename);
  • rn path_to_file new_filename: Renames file (for a new filename just provide a new name, no need to provide a path or extension);
  • cp path_to_file path_to_new_directory: Copies file from source path to destination directory;
  • mv path_to_file path_to_new_directory: Moves file from source path to destination directory;
  • rm path_to_file: Deletes file from provided path.

• Operating system info (prints following information in console):

  • os --EOL: Gets EOL (default system End-Of-Line) ;
  • os --cpus: Gets host machine CPUs info (overall amount of CPUS plus model and clock rate (in GHz) for each of them);
  • os --homedir: Gets home directory;
  • os --username: Gets current system user name;
  • os --architecture: Gets CPU architecture for which Node.js binary has compiled.

• Hash calculation:

  • hash path_to_file: Calculates hash for file and prints it into console.

• Compress and decompress operations (path_to_destination is just a destination folder name, do not provide a filename here):

  • compress path_to_file path_to_destination: Compresses file using Brotli algorithm;
  • decompress path_to_file path_to_destination: Dempresses file using Brotli algorithm.