compressing files and adding files to a folder
 

I was wondering which commands I may use to compress a script file: assignment9.2.log and a PowerPoint presentation: assignment9.2.pptx.

It needs to be compressed into a .zip file.

all I need are examples without the filenames included. FOr example:

compress [filename] [filename]

Something along the lines of the preceding example. Thanks to all who provides some advice.

Here's a few options (there's a few more.. ;) )

http://linux.die.net/man/1/compress
http://linux.die.net/man/1/gzip
http://linux.die.net/man/1/zip
http://linux.die.net/man/1/bzip2