Shell中for循环的几个常用写法 - BabyFish13 - CSDN博客

第一类：数字性循环
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for1-1.sh

#!/bin/bash for((i=1;i<=10;i++));do echo $(expr $i \* 3 + 1);done

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for1-2.sh

#!/bin/bash for i in $(seq 1 10)do echo $(expr $i \* 3 + 1);done

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for1-3.sh

#!/bin/bash for i in {1..10}doecho $(expr $i \* 3 + 1);done

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for1-4.sh

#!/bin/bash awk 'BEGIN{for(i=1; i<=10; i++) print i}'

第二类：字符性循环
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for2-1.sh

#!/bin/bash for i in `ls`;do echo $i is file name\! ;done

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for2-2.sh

#!/bin/bash for i in $* ;doecho $i is input chart\! ;done

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for2-3.sh

#!/bin/bash for i in f1 f2 f3 ;doecho $i is appoint ;done

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for2-4.sh

#!/bin/bash list="rootfs usr data data2"for i in $list;doecho $i is appoint ;done

第三类：路径查找
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for3-1.sh

#!/bin/bash for file in /proc/*;doecho $file is file path \! ;done

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for3-2.sh

#!/bin/bash for file in $(ls *.sh)doecho $file is file path \! ;done

Original url: Access
Created at: 2019-11-06 19:36:21
Category: default
Tags: none

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