How to use asterisk wildcard?

Here’s how to use the asterisk (*) wildcard in a Linux terminal:

1. Navigate to your directory:

   cd ~/your_directory

2. List all files:

   ls

3. List files with a specific extension (e.g., .txt):

   ls *.txt

4. List files that start with a specific pattern (e.g., files starting with "file"):

   ls file*

5. List files that contain a specific character or string (e.g., files containing "1"):

   ls *1*

6. List files with a different extension (e.g., .pdf):

   ls *.pdf

The asterisk wildcard can be used in various positions within the filename pattern to match multiple files based on your criteria.