Encrypt a zip archive

When you're using the zip CLI on your machine or a remote server and you need some extra security you can use the -e flag to encrypt a zip archive. Be sure to use a super long random password for this.

zip -e secure-files.zip ~/Documents/*.pdf

-e       
--encrypt
       
  Encrypt the contents of the zip archive using a password which is entered on
  the  terminal  in response to a prompt (this will not be echoed; if standard
  error is not a tty, zip will exit with an error).  The  password  prompt  is
  repeated to save the user from typing errors.

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