chpasswd - update password file in batch
chpasswd reads a file of user name and password pairs from standard
input and uses this information to update a group of existing users.
Without the -e switch, the passwords are expected to be cleartext. With
the -e switch, the passwords are expected to be in encrypted form.
Each line is of the format
The named user must exist. The supplied password will be encrypted as
necessary, and the password age updated, if present.
This command is intended to be used in a large system environment where
many accounts are created at a single time.
The input file must be protected if it contains unencrypted passwords.
passwd(1), useradd(8), newusers(8)
Julianne Frances Haugh (firstname.lastname@example.org)
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