File Manager (CLI app)

Features:

• CLI
• Basic file operations (copy, move, delete, rename, etc.)
• Built with Streams API
• Shows info about the host machine OS
• Performs hash calculations
• Compresses and decompresses files

List of operations and their syntax:

• Navigation & working directory (nwd)
  • Go upper from current directory (when you are in the root folder this operation does not change working directory)

  up

  • Go to dedicated folder from current directory (path_to_directory can be relative or absolute)

  cd path_to_directory

  • Print 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

  ls

• Basic operations with files
  • Read file and print it's content in console (done using Readable stream):

  cat path_to_file

  • Create empty file in current working directory:

  add new_file_name

  • Create new directory in current working directory:

  mkdir new_directory_name

  • Rename file:

  rn path_to_file new_filename

  • Copy file (done using Readable and Writable streams):

  cp path_to_file path_to_new_directory

  • Move file:

  mv path_to_file path_to_new_directory

  • Delete file:

  rm path_to_file

• Operating system info (prints following information in console)
  • Get EOL (default system End-Of-Line) and print it to console

  os --EOL

  • Get host machine CPUs info (overall amount of CPUS plus model and clock rate (in GHz) for each of them) and print it to console

  os --cpus

  • Get home directory and print it to console

  os --homedir

  • Get current system user name and print it to console

  os --username

  • Get CPU architecture for which Node.js binary has compiled and print it to console

  os --architecture

• Hash calculation
  • Calculate hash for file and print it into console

  hash path_to_file

• Compress and decompress operations
  • Compress file (using Brotli algorithm and Streams API)

  compress path_to_file path_to_destination

  • Decompress file (using Brotli algorithm and Streams API)

  decompress path_to_file path_to_destination

The program is started by npm-script start in following way:

npm run start -- --username=your_username