Linux操作系统应用项目9-示例脚本.docx

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2、oqoa qs,jsjij：aiue|Jd!J9S#iiiejBojd |叫s qseg jsjij. aqj si siqi #qseq/uiq/j#T-Z-69-3-3#!/bin/bashread aread bif($a$b)thenecho The max number is :$a elseecho The max number is :$b fi9-3-4#!/bin/bashif $1 -eq $2 ;thenecho $1=$2elif $1 -gt $2 ;then echo $1$2elif $1 -It $2 ;thenecho $1$2elif $1 -ne $2 ;

3、then echo $1!=$2fi9-3-5#!/bin/bash#case $1 in1) echo Today is Monday2) echo Today is Tuesday3)echo Today is Wednesday 4) echo Today is Thursday5) echo Today is Friday6) echo Today is Staturday 7) echo Today is Sunday J，*)echo Input Error!esac9-3-6#!/bin/bash#for(i=5;i10;i+)doecho The number is $i do

4、ne9-3-7#!/bin/bash#num=10while $num -It 20 doecho The number is :$num(num+) done9-3-8#!/bin/bash#num=10until $num -eq 5 doecho The Number is :$num(num-)done9-3-9#!/bin/bashfor(i = l;i = 5;i+) dofor(0=l;j=5;j+)doif(j-3)；thenbreakelseecho i=$ij=$j fidonedone9-3-10#!/bin/bash for(i=l;i=5;i+) dofor(j = l;j=5;j +)doif(j=3);thenbreak 2elseecho ”i=$i,j=$r fidonedone9-3-11#!/bin/bash#for(i=10;i15 &i/dev/null 2&1if $? -eq 0 ;thenecho the user $USER is exist .please give me another name elseuseradd $USERecho 123456|passwd -stdin $USER /dev/null 2&1 echo the user $USER has been createdfi done