NAME

       mkpasswd - Overfeatured front end to crypt(3)

SYNOPSIS

       mkpasswd PASSWORD [SALT]

DESCRIPTION

       mkpasswd  encrypts  the  given  password  with the crypt(3) libc function, using the given
       salt.

OPTIONS

       -S, --salt=STRING
              Use the STRING as salt. If it begins with $ then it  will  be  passed  straight  to
              crypt(3) without any checks.

       -R, --rounds=NUMBER
              Use  NUMBER  rounds. This argument is ignored if the method chosen does not support
              variable rounds. For the OpenBSD Blowfish method  this  is  the  logarithm  of  the
              number  of  rounds.   The  behavior  is  undefined  if  this option is used without
              --method.

       -m, --method=TYPE
              Compute the password using the TYPE method.  If TYPE  is  help  then  the  list  of
              available  methods  is  printed.  If TYPE begins and end with $ characters then the
              string is passed to crypt_gensalt(3) as-is.

       -5     Like --method=md5crypt.

       -P NUM, --password-fd=NUM
              Read the password from file descriptor NUM instead of  using  getpass(3).   If  the
              file  descriptor  is  not  connected  to  a  tty then no other text than the hashed
              password is printed on stdout.

       -s, --stdin
              Like --password-fd=0.

ENVIRONMENT

       MKPASSWD_OPTIONS
              A list of options which will be evaluated before the ones specified on the  command
              line.

BUGS

       If the --stdin option is used then passwords containing some control characters may not be
       read correctly.

       This program suffers of a bad case of featuritis.

SEE ALSO

       passwd(1), passwd(5), crypt(3), crypt(5), crypt_gensalt(3), getpass(3).

AUTHOR

       mkpasswd and this man page were written by Marco d'Itri  <md@linux.it>  and  are  licensed
       under the terms of the GNU General Public License, version 2 or higher.