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${fruits[@]};
Bash for Loop Standard Bash For Loop Over Strings Over a Number Range Over Array Elements Break and Continue for Loop Break Statement Continue Statement Examples of Bash for Loops In other words, Loops are easy and best to perform repetitive tasks. Its use is even more significant when workin...
/bin/bash #Declare array with 4 elements ARRAY=( 'Debian Linux' 'Redhat Linux' Ubuntu Linux ) # get number of elements in the array ELEMENTS=${#ARRAY[@]} # echo each element in array # for loop for (( i=0;i<$ELEMENTS;i++)); do echo ${ARRAY[${i}]} done...
‘banana’, and ‘cherry’. The ‘for’ loop then iterates over each element in the array. For each iteration, the current element’s value is stored in thefruitvariable, which we then use in theechocommand to print out a sentence. ...
替换bash中嵌套的for循环 、、 你能帮我摆脱嵌套的for循环吗?数组可能一直在变化,因为现在我需要添加/删除for循环。使用纯bash是否可以用更优雅的解决方案替换嵌套的for循环? #!/bin/bash array=(A B C)word1=word1arrC=${#array[*]} while [ $i -lt $((arrCword2} 浏览22提问于2021-01-22得票数 ...
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: $loop" done 输出结果: The value is: 1 The value is: 2 ...
一、循环(重复) 不断的重复、有始有终循环实现 private loop(){ for(start; end; loop termination){ expression1; expression2...当复杂的问题可以拆分成简单的子问题分治实现: private static int divide_conquer(Problem, Param1, Param2...) { // 终止条件 if (...在分步的过程中。根据上层结果,尝试...
How to do a foreach loop in bash? How to do a do-while loop in bash? How to create an infinite loop in bash? How to find if a number is odd or even in bash? How to iterate over a bash array? How to loop over each line of a file? How to iterate over a list of files?
你可以这样使用它:## declare an array variabledeclare -a arr=("element1" "element2" "element3")## now loop through the above arrayfor i in "${arr[@]}"do echo "$i" &...