There are various ways to delete files in Linux like:
+ rm
+ unlink
+ rename
Personally, I always use [rm] since it's short and supports cool options for file-deleting.
1. Delete one single file
$ rm file_name
2. Delete all files start w/ letter 'x'
$ rm x*
3. Delete all files end w/ string 'conf'
$ rm *conf
4. Delete all files in the current directory
$ rm *.*
5. Prompt before delete file
$ rm -i file_name
6. Delete all files w/o prompting
$ rm -f *.*
7. Delete recursively from files to directories w/o prompting
$ rm -f -r *.*
8. Get help for deleting
$ rm --help
Have fun!@