第一類：數(shù)字性循環(huán)

for1-1.sh

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

for1-2.sh

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

for1-3.sh

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

for1-4.sh

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

第二類：字符性循環(huán)

for2-1.sh

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

for2-2.sh

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

for2-3.sh

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

for2-4.sh

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

第三類：路徑查找

for3-1.sh

#!/bin/bash  for file in /proc/*; do echo $file is file path /! ; done 

for3-2.sh

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

以上這篇基于Shell中for循環(huán)的幾個常用寫法分享就是小編分享給大家的全部內(nèi)容了，希望能給大家一個參考，也希望大家多多支持武林站長站。