Purge files and archive

Hi Friends,

I have an urgent requirement.

I have many files huge in size which has occupied almost the entire disk space. The files are not being moved to the archived folder.

But at present I need to purge those files, new to shell scripting, not sure how to proceed.

Eg.
Directory > /usr/logfiles/
Filenames > a1.log
a2.log
a3.log
a4.log

Please advise.

Thanks

use the command: split, rm ??

As far as I know, split command will split the file into multiple files.
Here Im faced with a problem there is no disk space at all, even I cant do gzip.

cd /usr
tar  cvf - logfiles |gzip > /BIGSPACE/logfiles.tar.gz
rm logfiles/*.log