Old boy Education daily-63rd day-Batch create user and set random password (requires no Shell loop statement)

Title: Add 20 users in bulk, username user1~20, password is 5 random characters (requires no Shell loop statement)

Workaround

Method 1

Echo User{1..20}|xargs-n1|sed-r ' s# (. *) #useradd \1 \&\& echo \1 >>/tmp/passwd.txt \&\& Echo $RANDO M |md5sum |cut-c 1-5>>/tmp/passwd.txt \&\& echo ' tail-1/tmp/passwd.txt ' |passwd--stdin \1#g ' |bash

Method 2

Echo User{1..20}|xargs-n1|sed-r ' s# (. *) #useradd \1 \&\& pass= ' echo $RANDOM |md5sum |cut-c 1-5 ' \&\& ech o $pass |passwd--stdin \1 \&\& echo \1 $pass >>/tmp/user_passwd.txt#g ' |bash

Method 3

Echo User{1..20}|xargs-n1|sed-r ' s# (. *) #useradd \1 \&\& pass= ' echo $RANDOM |md5sum |cut-c 1-5 ' \&\& ech o \ 1: $pass >>/tmp/user_passwd.txt \&\& chpasswd</tmp/user_passwd.txt#g ' |bash

Note

Today is the day to accompany everyone's __ 63rd Day __, look forward to your progress.

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Old boy Education daily-63rd day-Batch create user and set random password (requires no Shell loop statement)