`ls` is a command on Unix-like operating systems to list contents of a directory, for example folder and file names.
### Usage
```bash
ls [options] [folder_path]
```
You can list the items in any directory without even entering the directory. Consider you are in a directory with folders Test1 and Test2. You're in the parent directory you can list all files in Test1 as follows:
`ls Test1`
Most used options:
*`-a`, all files and folders, including ones that are hidden and start with a `.`
*`-l`, List in long format
*`-G`, enable colorized output.
*`-s`, List file size.
*`-R`, displays the contents of the directory, and its subdirectories.