Pattern matching using the * wildcard character

Use the asterisk (*) to match any sequence or string of characters.

The (*) indicates any characters, including no characters.

See the following examples:

If you have the following files in your directory:
```
1test 2test afile1 afile2 bfile1 file file1 file10 file2 file3   
```
and you want to refer to only the files that begin with file, use:
```
file*
```
The files selected would be: file, file1, file10, file2, and file3.
To refer to only the files that contain the word file, use:
```
*file*
```
The files selected would be: afile1, afile2, bfile1, file, file1, file10, file2, and file3.