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BashBash Loop This tutorial will discuss the available Bash script formulations to write a Bashforloop. First, we will learn its basic syntax and concepts. Later, we will learn its different types in the Bash script, like the C-styleforloop notation and theforeachorfor-instyle. ...
In this tutorial, I explain how to use for, while and until loops in bash shell scripts, and demonstrate their use cases using shell script examples.Loop Statements: for vs. while vs. untilBoth the for and while statements allow you to express a loop with a terminating condition (i.e.,...
Once the shell script is executed, all the values in the range are listed, similar to what we had insimple loops. Bash For Loop with Ranges Example Additionally, we can include a value at the end of the range that is going to cause thefor loopto iterate through the values in incrementa...
We are going to stop here." break fi echo $i ((i++)) done echo "We are stopped!!!"In the example shared above, we stopped the while loop when the value of i was equal to 4.After executing the above Bash script, you will get an output like the one below:0...
Bash Copy In this example, we’ve created a ‘for’ loop that acts as a ‘foreach’ loop. The loop iterates over the numbers 1 through 5, echoing each number on a new line. This is a basic way to use the ‘foreach’ loop in Bash, but there’s much more to learn about loopin...
Create an Infinite Loop in Scripts You can create an infinite loop using afalsestatement as an expression. When you try to simulate infinite loops try to usesleepwhich will pass the script periodically. count=0 until false do echo "Counter = $count" ...
The bash script will echo a message “$c” which refers to the loop value, starting from1until it reaches the specified condition. The output will be as follows: Bash for Loop to Create an Infinity Loop Bash lets you create an infinity loop that keeps executing code until you terminate th...
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:
Nested Loops in Bash A nested loop is a loop within a loop. When working with arrays, you might find a situation where you need to loop through multiple arrays simultaneously. For example, you might have a script that needs to compare the elements of two arrays. Here’s an example: ...