Bash Infinite while Loop The infinite loops are used for many purposes in Bash scripting, such as testing, debugging, event handling, and managing background processes. The while loop stands as one of the crucial loop structures, often employed to construct infinite loops. The syntax of the whi...
You can have awhileloop to keep checking for that directory's existence and only write a message while the directory does not exist. If you want to do something more elaborate, you could create a script and show a more clear indication that the loop condition became true: #!/bin/bashwhi...
untilecho$var[$var-eq 0 ]doechoThis is inside loop var=$[$var-25]done 三、嵌套循环 #!/bin/bashfor((a=1;a<=3;a++))doechostart loop:$afor((b=1;b<=3;b++))doecho" inside loop:$b"donedone #!/bin/bashvar=5while[$var-ge 0 ]doechoout loop:$varfor((a=1;a<3;a++))...
1$cattest112#!/bin/bash3# testing a multicommandwhileloop4var1=105whileecho$var16[ $var1 -ge0]7do8echo"This is inside the loop"9var1=$[ $var1 -1]10done11$ ./test11121013This is inside the loop14915This is inside the loop16817This is inside the loop18719This is inside the loop...
/bin/bash for num in {1..10}; do echo $num done 如果你运行它,你应该会看到像这样的输出: $ ./for-loop.sh 1 2 3 4 5 6 7 8 9 10 你也可以使用for num in 1 2 3 4 5 6 7 8 9 10; do,但是使用括号扩展使得代码看起来更短且更智能。
在bash中使用用户输入和while循环的回文检查器 linux bash loops while-loop palindrome 我试图制作一个bash脚本来检查一个单词是否是我家庭作业的回文,但我无法让我的while循环正常工作。脚本应该一直运行并请求回文,直到用户给出回文。有经验的人能帮我解决这个问题吗?也许能解释一下我做错了什么。
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在Linux中,while循环是一种常见的控制结构,用于重复执行一系列命令直到指定的条件不再满足。while循环在Bash脚本编程中尤为重要,因为它允许自动化复杂的任务和处理不断变化的数据流。 (图片来源网络,侵删) 以下是如何操作Linux中的while循环的详细技术教学: ...
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Bash While loop example A While loop in a Bash script will trigger a series of commands to run repeatedly for as long as the condition result is “True.” Below is an example of Bash While loop syntax. Example: Explicit example: