chpasswd COMMAND:
chpasswd command is used to change password for users. This is an admin command, Only root user can change the password for users.
SYNTAX:
The Syntax is
chpasswd [options]
OPTIONS:
-c
Clears all password flags.
-e
Specifies that the passwords are of encrypted format.
-f flags
Specifies the comma separated list of password flags to set. Valid flag values are: ADMIN, ADMCHG, and/or NOCHECK. Refer to the pwdadm command documentation for details about these values.
-R load_module
Specifies the loadable I & A module used to change user's password.
EXAMPLE:
To reset password for users from command line,type
chpasswd
Followed by entering username:password pairs, one pair per line. Enter ctrl+D when finished.
user1:passwd1
user2:passwd2
....
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