Shell basic exercises & lt; 1 & gt;

1. the user is required to enter the name, age, and gender.

#! /Bin/bash

Read-p "Please input your name:" name

Read-p "Please input your age:" age

Read-p "Please input your sex:" sex

Echo "Your name is $ name, age is $ age, sex is $ sex ."

2. Write a script arvg. sh to read the input parameter variables, such as sh arvg. sh test12. Then, ask the user if they want to create a directory,

If the user answers yes or YES, it creates a directory for the user and then asks whether to create a file for the user. If yes is returned

Create test01 in the Created directory.

#! /Bin/bash

If [$ #-lt 1]; then

Echo "Please like 'sh test. sh a B C '"

Fi

Read-p "are you mkdir file? Please enter yes/YES or no: "qq

If [$ qq = yes] | [$ qq = YES]; then

Mkdir $1

For I in $ (seq 1 10 );

Do

Touch $1/test $ I

Done

Else echo "No file created"

Exit 0

Fi

3. Change the password randomly:

#! /Bin/bash

#2011/07/10 by larry

LOG = PassChange 'date + % F'. log

> $ Pass

Cat/etc/passwd | while read line

Do

Id = 'echo $ line | awk-F ":" '{print $3 }''

User = 'echo $ line | awk-F ":" '{print $1 }''

PASS = $ RANDOM

If [$ id-lt 500]; then

Echo "$ user is system users ."

Elif [$ id-gt 500]; then

Echo $ RANDOM | passwd $ user -- stdin

Echo "$ USER $ id $ RANDOM" >>$ LOG

Fi

Done

#####################################

#! /Bin/bash

#2011/07/10

Now = 'date + % F'

File =/etc/passwd

For user1 in 'cat $ file | awk-F: '$3 <500 {print $1 }''

Do

Echo $ user1 is systerm user

Done

For user2 in 'cat $ file | awk-F: '$3> 500 {print $1 }''

Do

Echo $ RANDOM | passwd $ user2 -- stdin>/dev/null

Echo "$ user2 $ RANDOM"> Pass $ now. log

Done

This article is from the "Larry's learning path" blog