Package and compress (archive) files into zip file.

# To package and compress a directory and its contents, [r]ecursively:
zip -r /path/to/dir

# To e[x]clude unwanted files from being added to the compressed archive:
zip -r path/to/dir -x path/to/exclude

# To archive a directory and its contents with the highest level [9] of compression:
zip -r -9 /path/to/dir

# To package and compress multiple directories and files:
zip -r /path/to/dir1 /path/to/dir2 /path/to/file

# To add files to an existing zip file:
zip path/to/file

# To delete files from an existing zip file:
zip -d "foo/*.tmp"