-crypt
    Use the crypt algorithm (default).

-1  Use the MD5 based BSD password algorithm 1.

-apr1
    Use the apr1 algorithm (Apache variant of the BSD algorithm).

-salt string
    Use the specified salt.  When reading a password from the terminal, this implies -noverify.

-in file
    Read passwords from file.

-stdin
    Read passwords from stdin.

-noverify
    Don't verify when reading a password from the terminal.

-quiet
    Don't output warnings when passwords given at the command line are truncated.

-table
    In the output list, prepend the cleartext password and a TAB character to each password hash.