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...
While one can use the for loop for numbers and strings, programmers can even leverage the same to repeat over a range. For example, we will state an array - Players and iterate over each of the elements of the range. PLAYERS=('Cristiano Ronaldo' 'Lionel Messi' 'Iker Casillas') for pla...
‘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. ...
readarray -d '' array 创建了一个空数组; 2. 每次执行 read 语句时,都会从标准输入中读取以 null 分隔的文件名。-r 选项告诉 read 不要处理反斜线字符。...最后一行结合了重定向和命令替换,将 find 的输出提供给 while 循环的标准输入。...如何将Bash数组的元素连接为分隔符分隔的字符串如何在Bash中...
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: If you add another command, the loop will operate on the same item before moving to the next one. For example, we’ll insert anotherecho...
在一个array结构的上下文中,中括号用来引用数组中每个元素的编号。 $ vim test25.sh 输入代码: #!/bin/bash arr=(12 22 32) arr[0]=10 echo ${arr[0]} 运行代码: $ bash test25.sh 10 重定向 test.sh > filename:重定向test.sh的输出到文件 filename 中。如果 filename 存在的话,那么将会被覆...
在一个 array 结构的上下文中,中括号用来引用数组中每个元素的编号。 vim test25.sh 输入代码: #!/bin/bash arr=(12 22 32) arr[0]=10 echo ${arr[0]} 运行代码: bash test25.sh 10 尖括号(< 和 >) 重定向 test.sh > filename:重定向 test.sh 的输出到文件 filename 中。如果 filename 存在...
How to do a foreach loop in bash? How to do a do-while loop in bash? How to create an infinite loop in bash? How to find if a number is odd or even in bash? How to iterate over a bash array? How to loop over each line of a file? How to iterate over a list of files?
It uses a for loop to iterate over each element (name) in the array. Inside the loop, it prints a greeting message for each name using "echo". The '$name' variable holds the value of each name in each iteration of the loop.