chpasswd



CHPASSWD(8)                                                        CHPASSWD(8)




NAME

       chpasswd - update passwords in batch mode


SYNOPSIS

       chpasswd [options]


DESCRIPTION

       chpasswd reads a list of user name and password pairs from standard
       input and uses this information to update a group of existing users.
       Each line is of the format:

        user_name:password

       By default the supplied password must be in clear-text. Default
       encription algoritm is DES. Also the password age will be updated, if
       present.

       This command is intended to be used in a large system environment where
       many accounts are created at a single time.


OPTIONS

       The options which apply to the chpasswd command are:

       -e, --encrypted
              Supplied passwords are in encrypted form.

       -h, --help
              Display help message and exit.

       -m, --md5
              Use MD5 encryption instead DES when the supplied passwords are
              not encrypted.


CAVEATS

       Remember keep protected for reading by others fille passed to standard
       input chpasswd command if it contains unencrypted passwords.


SEE ALSO

       passwd(1), newusers(8), useradd(8)


AUTHOR

       Julianne Frances Haugh (jockgrrl@ix.netcom.com)



                                  08/03/2005                       CHPASSWD(8)

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