$ gwvault -h
NAME:
   gwvault - encryption/decryption utility for Ansible data files

USAGE:
   main [global options] command [command options] [arguments...]

COMMANDS:
   encrypt                            encrypt file
   decrypt                            decrypt file
   edit                               edit file and re-encrypt
   rekey                              alter encryption password and re-encrypt
   create                             create a new encrypted file
   view                               view inputs of encrypted file
   encrypt_string, av_encrypt_string  encrypt provided string, output in ansible-vault format
   install-manpage                    Generate and install man page
   version, v                         Print version info
   help, h                            Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --vault-password-file VAULT_PASSWORD_FILE          vault password file VAULT_PASSWORD_FILE
   --new-vault-password-file NEW_VAULT_PASSWORD_FILE  new vault password file for rekey NEW_VAULT_PASSWORD_FILE
   --help, -h                                         show help (default: false)

$ curl https://i.jpillora.com/GoodwayGroup/gwvault! | bash