On Linux/macOS, use `ls -a`
On Linux/macOS, use `ls -la`
On Linux/macOS, use `find . -name “.*”`
On Linux/macOS, use `cat ~/.hidden_filename`
On Linux/macOS, use `nano ~/.hidden_filename`
On Windows File Explorer, enable hidden items in View
On Windows Command Prompt, use `dir /a`
On Windows PowerShell, use `Get-ChildItem -Force`
On Windows PowerShell, use `Get-Content .hiddenfile.txt`
On Windows, open the file with Notepad or another text editor
On macOS Finder, press `Cmd + Shift + .`
On Linux file managers, enable show hidden files