A For loop statement for the shell under Linux

First Category: Digital cycle
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for1-1.sh

#!/bin/bash    for ((i=1; i<=; i++));     do   Echo $ (expr31);    Done  

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for1-2.sh

#!/bin/bash    for with $ (seq1)  do    Echo $ (expr31);    Done  

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for1-3.sh

#!/bin/bash    for in {1.. Ten }  do  Echo $ (expr31);    Done  

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for1-4.sh

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

Type II: Character loops
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for2-1.sh

#!/bin/bash    for in 'ls';     do   Echo file name\!  ;    Done  

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for2-2.sh

#!/bin/bash    for in $* ;     do  echo $i is input chart\!  ;    Done  

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for2-3.sh

#!/bin/bash    for in  F1 F2 F3;    do  Echo $i is appoint;    Done  

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for2-4.sh

#!/bin/bash    list="rootfs usr data data2"   for inch $list;    do  Echo $i is appoint;    Done  

Class III: PATH Lookup
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for3-1.sh

#!/bin/bash    forfile in/proc/*;  Do  echo $file is file path \!;  Done  

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for3-2.sh

#!/bin/bash    forfile in $ (ls *.  SH)  do  echo $filefile path \! ;    Done  

Summarize:

It is now common to use a for-in structure, in which a function can be used to construct a range, such as $ () and ' these, which write some lookup syntax, such as LS test*, then the output file name after the traversal.

Reference:

HTTP://BLOG.CSDN.NET/BABYFISH13/ARTICLE/DETAILS/52981110 (the above content is transferred from this article)

A For loop statement for the shell under Linux