In Bash scripting, the syntax dictates that we specify our function within the “do” and “done” keywords. So, as we are trying to display the contents of the array, we will type it out as shown below: This will go through all the contents of the array and display them one by one...
Example-2: Reading Array Variable You can use for loop to iterate the values of an array. Create a new bash file named loop2.sh with the following script. In this example, the loop retrieves the values from an array variable named ColorList, and it will print the output only if the ...
Use index to print values of array in bash This method uses a typical for loop where you declare the initial value, a condition, and if the condition is true then an action (increment or decrement). Here's a simple syntax to get the work done: for (( i=0; i<${#array_name[@]}...
Bash while Loop Iterate through an Array An array stores multiple elements of the same data type. Loop structures serve as a fundamental tool for iterating through arrays and performing operations on each of their elements. For example, let’s create a Bash script that has an array of 5 ele...
Let us look at some of the examples of using for loop in Bash now that the syntax is clear. Example 1 - for Loop to Read Input Variable Using the for loop, it is straightforward to read the predefined strings or array. Here is an example of how you can use the for loop. In the...
Here is an example loop that iterates through all numbers from 0 to 3: for i in {0..3} do echo "Number: $i" done Copy Number: 0 Number: 1 Number: 2 Number: 3 Copy Starting from Bash 4, it is also possible to specify an increment when using ranges. The expression takes the ...
Also, make sure to refer to our earlierBash Array examples. Bash Until Example 6. Waiting for the Machine to come up This example is used to wait till the machine comes up before doing a ssh to that machine. The until loop statement ends only when the ping gives the responses. ...
/bin/bash for n in {1..7..2}; do echo $n done Bash For Loop Incremented Values From the above example, you can see that theloopincremented the values inside the curly braces by 2 values. Bash For Loops with Arrays You can also easily iterate through values defined in an array ...
While running bash scripts, you'll come across times when you want to run tasks repeatedly such as printing the value of a variable in a specific pattern multiple times. In this tutorial, I'm going to walk you through the following: ...
The traditional for loop can be used to iterate through an array. const numbers = [1, 2, 3, 4, 5]; for (let i = 0; i < numbers.length; i++) { console.log(numbers[i]); } For...of Loop The for...of loop is a more concise way to iterate over the values of an array...