Usage: passgen [OPTIONS]
Generate a secure password.
Options:
--length INTEGER [default: 16]
--letters / --no-letters [default: letters]
--numbers / --no-numbers [default: numbers]
--symbols / --no-symbols [default: symbols]
--similar / --no-similar [default: no-similar]
--install-completion Install completion for the current shell.
--show-completion Show completion for the current shell, to copy it
or customize the installation.
--help Show this message and exit.