第一類(lèi)：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(lèi)：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(lèi)：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(gè)常用寫(xiě)法分享就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持武林網(wǎng)。
新聞熱點(diǎn)
疑難解答
圖片精選
