前面遇到很多中linux系统管理的方式，今天给大家搜集了关于linux系统管理中使用chpasswd命令的信息。相信它会给大家的带来高效率的工作，希望大家看后会有很大收获。

命令：chpasswd

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.

执行方法：

先创建用户密码对应文件，格式为username:password，如abc:abc123,保存成文本文件ab.txt.执行命令:chpasswd

以上是运用chpasswd命令来批量修改密码。是linux系统管理中的捷径。

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