File extensions are not always used, or used consistently.
So what happens when a file does not have an extension, or the file
does not seem to be what the extension says it is supposed to be?
That is when the file command can be
helpful.
If you create or find a file without an extension,
use the file command to find out what the file
is. For example, if you have a file called saturday
with no file estension, type:
and you will see ASCII text, or something
similar, telling you it is a text file.
