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 $n done C语言风格带有条件语句的Bash...
for i in {1..5}; do if [[ "$i" == '2' ]]; then continue fi echo "Number: $i" done CopyNumber: 1 Number: 3 Number: 4 Number: 5 Copy Bash for Loop Examples Renaming files with spaces in the filename The following example shows how to rename all of the files in the ...
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
This explains both of the bash for loop methods, and provides 12 different examples on how to use the bash for loop in your shell scripts. Bookmark this article for future reference, as this is the only article you would ever need to refer on how to use bash for loops with examples. ...
Hopefully, these examples have demonstrated the power of aloop 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 destructi...
If you want to know more uses of for loop then you must read this tutorial. 12 most useful examples of ‘for’ loop are shown in this tutorial to know other specific uses of ‘for’ loop in bash. Syntax: for loop can be used by two ways in bash. One way is ‘for-in’ and ...
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 $i times" done This is from Bash For Loop Examples In Linux Bash v4.0+ has inbuilt support for setting up a step value using {START..END.....
Bash For Loop with Ranges In the previous examples, we explicitly listed the values to be iterated by thefor loop, which works just fine. However, you can only imagine how cumbersome and time-consuming a task it would be if you were to iterate over, for example, a hundred values. This...
When a command or series of commands needs to be repeated, it is put inside a loop. The shell provides three types of loop: while, until, and for. The
Bash For循环示例 使用文件名中的空格重命名文件 以下示例显示如何使用Bash for循环通过将空格替换为下划线来重命名当前目录中的所有文件,并在其名称中带有空格。 forfilein*\*;domv"$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*\ *...