批量新增使用者,並設定8位隨機密碼(禁止使用for,while等迴圈)

建立使用者：

[[email protected] lin]# echo oldboy{01..05}|xargs -n1

oldboy01

oldboy02

oldboy03

oldboy04

oldboy05

[[email protected] lin]# echo oldboy{01..05}|xargs -n1|awk '{print "useradd "$NF}'

useradd oldboy01

useradd oldboy02

useradd oldboy03

useradd oldboy04

useradd oldboy05

交給bash執行

[[email protected] lin]# echo oldboy{01..05}|xargs -n1|awk '{print "useradd "$NF}'|bash

設定隨機密碼

方法1：

[[email protected] lin]# echo oldboy{01..05}:$(echo $RANDOM|md5sum|cut -c 1-8)|xargs -n1

oldboy01:2ea44fb5

oldboy02:24d3d6ab

oldboy03:d524fdff

oldboy04:92e6c1e7

oldboy05:9e6830d8

方法2：

[[email protected] lin]# echo oldboy{01..05}:$((RANDOM +10000000))|xargs -n1

oldboy01:10029728

oldboy02:10003967

oldboy03:10029427

oldboy04:10021946

oldboy05:10020909

重定向到檔案

[[email protected] lin]# echo oldboy{01..05}:$((RANDOM +10000000))|xargs -n1>oldboypwd.txt

[[email protected]

oldboy01:10027086

oldboy02:10023644

oldboy03:10016532

oldboy04:10017825

oldboy05:10027238

修改密碼

[[email protected] lin]# chpasswd oldboypwd.txt