Treminal-Based File Explorer

About :

This File Explorer works in two modes -
1. Normal mode (default mode) - used to explore the current directory and navigate the filesystem
2. Command mode - used to enter shell commands The root of application is the home directory of the system.
The application displays data starting from the top-left corner of the terminal window, line-by-line. The last few lines of the display screen is used as a status bar.

Normal mode:

Normal mode is the default mode of your application. It should have the following functionalities -
1. Display a list of directories and files in the current folder
 a. Every file in the directory should be displayed on a new line with the following attributes for each file -
   i. File Name
   ii. File Size
   iii. Ownership (user and group) and Permissions
   iv. Last modified
All of this should be displayed in human readable format  b. The file explorer should show entries “.” and “..” for current and parent directory respectively
 c. The file explorer should handle scrolling in the case of vertical overflow using arrow keys ( or you can use k & l)
 d. User should be able to navigate up and down in the file list using the corresponding up and down arrow keys
2. Open directories and files
When enter key is pressed -
 a. Directory - Clear the screen and navigate into the directory and show the directory contents as specified in point 1
 b. File - Open the file in vi editor
3. Traversal
 a. Go back - Left arrow key should take the user to the previously visited directory
 b. Go forward - Right arrow key should take the user to the next directory
 c. Up one level - Backspace key should take the user up one level
 d. Home - h key should take the user to the home folder (the folder where the application was started)

Command Mode:

The application enters the Command button whenever “:” (colon) key is pressed. In the command mode, the user should be able to enter different commands. All commands appear in the status bar at the bottom.

2.1 copy, move and rename

copy <source_file(s)> <destination_directory>
move <source_file(s)> <destination_directory>

Eg:
copy foo.txt bar.txt baz.mp4 ~/foobar
move foo.txt bar.txt baz.mp4 ~/foobar
rename foo.txt bar.txt

Copying / Moving of directories is also be implemented

2.2 create files and directories

create_file <file_name> <destination_path>
create_dir <dir_name> <destination_path>

Eg:
create_file foo.txt ~/foobar
create_file foo.txt .
create_dir folder_name ~/foobar

2.3 delete files and directories

delete_file <file_path>
delete_dir <directory_path>

Eg:
delete_file ~/foobar/foo.txt.
delete_dir ~/foobar/folder_name

2.4 goto

goto <directory_path>

Eg:
goto /home/darshan/
goto ~

2.5 Search a file or folder given fullname.

search <filename>

Eg:
search foo.txt

Search for the given filename under the current directory recursively

Assumptions:

You can use both absolute and relative paths whereever required.