To remove a single file:
This removes the file help.txt from the current directory.
To remove several files:
This removes files figure2 through to figure7 from the subdirectory artwork.
To remove a file which you don't have write permission for:
rm tmp/intro.txt rm: override protection 444 for intro.txt? y
This removes the file intro.txt from the subdirectory tmp. Because you don't have write permission for this file you are asked to confirm that you want to remove it. Entering a y removes the file provided you own the directory tmp, any other response leaves the file alone.
To remove files interactively:
rm -i *.fm
This will prompt you to confirm that you want to remove a file from the current directory whenever that file has the suffix .fm.
Answering y will delete the file. The file is not deleted if any other response is given.