zip command

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

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

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

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

# To create an encrypted archive (user will be prompted for a password):
zip -e -r compressed.zip path/to/dir

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

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

# To archive a directory and its contents to a multi-part [s]plit zip file (e.g. 3GB parts):
zip -r -s 3g compressed.zip path/to/dir