Bash for Loop Standard Bash For Loop Over Strings Over a Number Range Over Array Elements Break and Continue for Loop Break Statement Continue Statement Examples of Bash for Loops In other words, Loops are easy and best to perform repetitive tasks. Its use is even more significant when workin...
从上面的例子可以看出loop将花括号内的值增加 2 个值。 Bash For 数组循环 你还可以使用For Loop. 在下面的示例中,for loop遍历内部的所有值fruits array并将它们打印到标准输出。 #!/bin/bashfruits=("blueberry""peach""mango""pineapple""papaya")fornin${fruits[@]};doecho$ndone 1. 2. 3. 4. 5...
/bin/bash #Declare array with 4 elements ARRAY=( 'Debian Linux' 'Redhat Linux' Ubuntu Linux ) # get number of elements in the array ELEMENTS=${#ARRAY[@]} # echo each element in array # for loop for (( i=0;i<$ELEMENTS;i++)); do echo ${ARRAY[${i}]} done...
fruit_array=("apple" "banana" "red cherry" "green grape") for fruit in "${fruit_array[@]}" do echo "Fruit: $fruit" done The bash loop will iterate through items in the array and use theechocommand to print them with theFruit:prefix. This is what the output looks like: ...
TL;DR: How Do I Loop Through an Array in Bash? You can use a'for'loop to iterate through an array in Bash, with the syntaxfor i in "${array[@]}". This is a fundamental technique in Bash scripting that allows you to process each element in an array individually. ...
在bash中,可以使用for循环来重复执行一系列命令。for循环的语法如下: ```bash for 变量名 in 值列表 do 命令 done ``` 其中,变量名是用来存储值列表中的每...
echo "endless loop" done 可以在 if/then 中作占位符: #!/bin/bash condition=5 if [ $condition -gt 0 ] #gt表示greater than,也就是大于,同样有-lt(小于),-eq(等于) then : # 什么都不做,退出分支 else echo "$condition" fi 变量扩展/子串替换 ...
for循环一般格式为: for var in item1 item2 ... itemN do command1 command2 ... commandN done 例如,顺序输出当前列表中的数字: for loopin 1 2 3 4 5 do echo "The value is: $loop" done 输出结果: The value is: 1 The value is: 2 ...
nbsp;now loop through the above arrayfor&...
It uses a for loop to iterate over each element (name) in the array. Inside the loop, it prints a greeting message for each name using "echo". The '$name' variable holds the value of each name in each iteration of the loop.