How to use the while loop in bash Like any other loop, while loop does have a condition statement and the condition is the crucial factor to iterate the loop. See, whenever you start the loop, you have to give a condition to the loop, which will only be iterated until the condition i...
Shell scripting, specifically Bash scripting, is a great way to automate repetitive or tedious tasks on your systems. Why type when you can schedule and run scripts in a hands-free manner? One of the many scripting constructs is the loop. A loop is a section of code that picks up data ...
Three types of loops are used in bash programming. While loop is one of them. Like other loops, a while loop is used to do repetitive tasks. The starting and ending block of the while loop is defined by do and done keywords in the bash script. The termin
In scripting languages such as Bash, loops are useful for automating repetitive tasks. There are three basic loop constructs in Bash scripting, for loop , while loop, and until loop .This tutorial covers the basics of while loops in Bash. We’ll also show you how to use the break and co...
A while loop in bash consists of a conditional expression and a loop body which is surrounded by do and done. The loop body continues to be executed as long as the condition evaluates to true. The conditional expression in while loop can be surrounded by either a pair of single square ...
5 4 Exit out of loop due to break 在上面的程序中,num 初始化为 5,只要 num 大于或等于 0,循环就会被执行,但由于循环中的 break 语句在 num 为3 时,所以当 num 的值变成 3 时,我们就退出循环。 示例:带有 continue 语句的 Bash 中的 while 循环 #!/bin/bash num=6 while [ $num -ge 1 ]...
shell Bash中的While-loop子壳困境问题在于while循环是管道的一部分。在bash管道中，管道的每个元素都在...
In Bash scripting, the while loop functions by repeating a set of instructions as long as the specified condition is true.
In this article, we have discussed how to read lines using the while loop in bash programming. We have implemented different methods using the bash script or you can simply use a text file to perform reading a file line by line task. If you are interested to learn more examples then usin...
While loop in bash The while loop tests a condition and then keeps on looping as long as the condition is true. while [ condition ]; do commands done If you take the previous example, it can be rewritten using the while loop like this: ...