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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), newusers(8), useradd(8)
Julianne Frances Haugh (email@example.com)
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