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1: Say hello to each user in the/etc/passwd directory, and indicate its UID number! (Eg:hello,root,your uid is 0)
2: How many accounts does this script share?

#!/bin/bash
a= "/etc/passwd"
b= "/root/b"
if awk-f: ' {print ' Hello, ' $ ', ' ' Your UID is ' $ $ ' $a > $b
Then
Cat $b
awk ' {print $} ' $b |wc-l
fi

[[Email protected] ~]# sh AAA

Hello,root, your UID is 0

Hello,bin, your UID is 1

Hello,daemon, your UID is 2

Hello,adm, your UID is 3

HELLO,LP, your UID is 4

Hello,sync, your UID is 5

Hello,shutdown, your UID is 6

Hello,halt, your UID is 7

Hello,mail, your UID is 8

HELLO,UUCP, your UID is 10

Hello,operator, your UID is 11

Hello,games, your UID is 12

Hello,gopher, your UID is 13

HELLO,FTP, your UID is 14

Hello,nobody, your UID is 99

HELLO,VCSA, your UID is 69

Hello,saslauth, your UID is 499

Hello,postfix, your UID is 89

HELLO,SSHD, your UID is 74

Hello,mysql, your UID is 500

HELLO,PHP-FPM, your UID is 501

HELLO,NTP, your UID is 38

Hello,named, your UID is 25

Hello,zabbix, your UID is 498

Hello,memcached, your UID is 497

Hello,redis, your UID is 503

Hello,mailnull, your UID is 47

Hello,smmsp, your UID is 51

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This article is from the "Steven Never give Up" blog, please be sure to keep this source http://wsw26.blog.51cto.com/1442148/1755056

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