How can I zip all the files in a directory?
 

I have a bunch of files in a single directory, that I need to have a .zip extension, not .gz, how can I do this without zipping each file individually?

If there aren't any subdirectories, you could use
for file in *; do
zip "${file}.zip" "${file}"
done

If there are directories or special files (like sockets or links) you can use find to just handle regular files in the current directory:
find ./ -maxdepth 1 -type f -exec zip '{}'.zip '{}' \;

Many thanks! I would have never figured that out lol.

gz extensions are supported by most MS/commercial (un)zippers as well; it shouldn't make much of a difference whether you use zip or gzip. Only bzip2 has more limited support.