The while loop is another popular and intuitive loop available in bash scripting. The syntax looks like this. while<condition>;do # something done In the following example, the script will print “hello world” five times. num=1 while[$num-le5];do ...
InBashscripting,loopsplay much the same role and are used toautomate repetitive tasksjust like in programming languages. InBashscripting, there are 3 types ofloops:for loop,while loop, anduntil loop. The three are used to iterate over a list of values and perform a given set of commands. ...
Undoubtedly the most useful feature ofbashscripting is loop control. In any imperative programming language likebash, loop statements are commonly used along with conditional statements to perform repetitive tasks. In case ofbash, three different types of loop statements are available:for,whileanduntil....
In Bash shell scripting, Loops are useful for automating repetitive tasks. When you have to repeat a task N number of times in your script, loops should be used. There are three types of loops supported in bash. For loop While loop Until loop All three loops serve the same purpose of r...
Learn bash from scratch If you're looking for a way to kick start the bash journey, we made a dedicated tutorial series that should cover all the basics: Bash Tutorial Series for Beginners: Start Learning Bash Scripting The 10 chapter series will teach the bash scripting essentials. Linux Han...
Like any other programming language, bash shell scripting also supports 'for loops' to perform repetitive tasks. It helps us to iterate a particular set of statements over a series of words in a string, or elements in an array. For example, you can either run UNIX command (or task) many...
#!/bin/bash for item in * do if [ -f $item ] then echo $item fi done for do done if then (elif...then...) (else) fi
In any programming or scripting language, the loop is a quintessential feature. Loops are generally to perform a repetitive task until a certain condition is met. Bash is a powerful scripting language that supports all the major features of a scripting l
In the end, we will conclude by discussing the issue of the semi-colon;while making theforloop in the bash prompt. BashforLoop A loop in a programming or scripting language is an iterative control structure used to repetitively execute a statement or a set of statements until a certain crit...
Bash scripting is a bit technical, but over time, as you keep writing scripts, they become easier and easier. Nevertheless, you have a couple of questions to ask in regards to the Bash While loop, right? Here’s everything you need to know, in detail. ...