sudo aptitude remove gzip
and it looked like it uninstalled but when I typed gzip at the terminal it still ran.
BTW: Why do you want to remove
If you see
i wasn't reading carefully when i tried to uninstall it. this is what it says
gzip is a very important tool for each and avery linux distribution. Many applications store their files in a compressed format. GZip can create and handle these files.
AFAIK on most distribution management systems like deb and rpm the pacakges are gzipped, too. Basic tools like logrotate use gzup compression. etc, etc, etc. Uninstalling gzip will most likely render your system unuseable and may prevent you from reinstalling it.
If gzip is taking up a lot of resources it's most likely the case that some other application is calling gzip to compress something. In this case gzip is just called as a tool.