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.TH CHPASSWD 8
.SH NAME
chpasswd \- 成批更新使用者的口令
.SH 總覽
chpasswd [\-e]
.SH 描述
.B chpasswd
從系統的標準輸入讀入使用者的名稱和口令，
並利用這些信息來更新系統上已存在的使用者的口令。
在沒有用 \-e 這個開關選項的情況下，口令將按明文的形式接收。
如果使用了 \-e 選項，口令將只能以加密的方式傳遞。
每行的具體格式如下所示：
.sp 1
		\fI使用者名\fR：\fI新口令\fR
.sp 1
使用者名必須是系統上已存在的使用者。
輸入的密碼在必要時進行加密處理，
如果口令檔案具有時間特性，則同時更新。
.PP
此命令適用於大型的系統，在此類系統中，
使用者一般都是一次同時生成的，而用 adduser 和
passwd 口令來對其一一進行設置一般說往往比較慢。
.SH 注意事項
.\" The \fBmkpasswd\fR command must be executed afterwards to update the
.\" DBM password files.
.\" This command may be discarded in favor of the newusers(8) command.
因為可以使用檔案重定向進行輸入，
即：chpasswd < user&passwd-filename， 
如果輸入檔案是按非加密方式傳遞的話，請對該檔案進行適當的加密。
.SH 又見
passwd(1),useradd(8),newuser(8)
.SH 作者
Julianne Frances Haugh (jfh@bga.com)

.SH "[中文版維護人]"
.B 所羅門 <solomen@email.com.cn>
.SH "[中文版最新更新]"
2000/11/26
.SH "[中國 Linux 論壇 man 手冊頁翻譯計劃]"
.BI http://cmpp.linuxforum.net