chpasswd(8) -- Linux man page
NAME
chpasswd - update password file in batch
SYNOPSIS
chpasswd [-e]
DESCRIPTION
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
user_name:password
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.
CAVEATS
The input file must be protected if it contains unencrypted passwords.
SEE ALSO
passwd(1),
newusers(8),
useradd(8)
AUTHOR
Julianne Frances Haugh (jockgrrl@ix.netcom.com)
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