for n in ${fruits[2]}; do echo $n done C语音风格Bash循环 你可以在循环内使用变量来迭代一系列元素。这就是C语言风格Loop的用武之地。以下示例说明了这一点,它打印出从1到 7的数值列表。 #!/bin/bash n=7 for (( n=1 ; n<=$n ; n++ )); do echo $n done C语言风格带有条件语句的Bash循
Latest bash version 3.0+ has inbuilt support for setting up ranges: 代码语言:txt AI代码解释 #!/bin/bash for i in {1..5} do echo "Welcome $i times" done This is from Bash For Loop Examples In Linux Bash v4.0+ has inbuilt support for setting up a step value using {START..END.....
In this article, I will take you through 15 Practical Bash for loop Examples in Linux/Unix for Beginners. If you are using Bash Scripting in Linux from long
Hopefully, these examples have demonstrated the power of aforloop at the Bash command line. You really can save a lot of time and perform tasks in a less error-prone way with loops. Just be careful. Your loops will do what you ask them to, even if you ask them to do something destr...
/bin/bash # 打印数字0到9,每个数字打印间隔1秒 for i in {0..9} do echo $i sleep 1 done 参考链接 Linux Shell Scripting Tutorial - Loops Bash For Loop Examples 通过以上内容,您可以了解Linux循环的基本概念、类型、应用场景以及常见问题的解决方法。希望这些信息对您有所帮助。
Bash For循环示例 使用文件名中的空格重命名文件 以下示例显示如何使用Bash for循环通过将空格替换为下划线来重命名当前目录中的所有文件,并在其名称中带有空格。 forfilein*\*;domv"$file""${file///_}"done 我们逐行细分代码: 第一行创建一个for循环,并循环访问名称中带有空格的所有文件的列表。表达式*\ *...
for ((变量=初始值; 条件判断; 变量变化)) do 语句 done 使用示例 示例一 Bash代码 for s in ac apropos at arp do echo $s done [root@jfht ~]#for s in ac apropos at arp >do >echo $s >done ac apropos at arp [root@jfht ~]# ...
在Linux / UNIX操作系统下,如何使用bash for loop重复执行某些任务? 如何使用for语句设置无限循环? 如何使用三参数进行循环控制表达式? “ for循环”是bash编程语言的语句,它允许重复执行代码。 for循环被归类为迭代语句,即bash脚本中进程的重复。 例如,您可以运行UNIX命令或任务5次,或使用for循环读取和处理文件列表。
Bash For Loop with Ranges In the previous examples, we explicitly listed the values to be iterated by thefor loop, which works just fine. However, you can only imagine how cumbersome and time-consuming a task it would be if you were to iterate over, for example, a hundred values. This...
When a command or series of commands needs to be repeated, it is put inside a loop. The shell provides three types of loop: while, until, and for. The