The basic syntax of a for loop in Bash is: forvariableinlistdocommandsdone Examples Example 1: Iterating Over a List of Words #!/bin/zshforwordinapple banana cherrydoecho"The word is:$word"done Example 2: Iterating Over a Range of Numbers ...
In Bash, for loop is commonly used to transverse the elements of a list, array, string, range, etc. We can also use it to iterate/repeat the execution till the specified condition. The main purpose of the loop is basically to execute tasks repeatedly. So, we can use it to repeat any...
"Welcome to Ostechnix"is the list of items passed to thefor loopand each word will be picked as a separate iteration and stored in a variable (val). The variable can be named anything. Here I name it asval. There are three items in the list so there will be three iterations in the...
Here, a variable named $courses is used to assign a text value. ‘for’ loop is used to read the variable, $courses. The text value will be split-ted based on the space and read by the ‘for’ loop. When the value, ‘Oracle’ is matched with $course then it will print ‘Oracle...
The first notation uses theforloop with a defined range. In the syntax below, the endpoint of the range isn. It means theforloop will execute the commands inside it forntimes before it stops. forvariablein1 2 3... ndocommand1 command2done ...
“for” loop is mainly used when you want to work with a range in your script. You can define the start and end of the range. For instance, if you want to implement a shorter version of the earlier command to work with a range of 1 to 5, you could change the “for” loop ...
For instance, in the below example, the loop will repeat each item in the list of strings and variable element fixed to the current item. for element in Gold Silver Diamond Platinum do echo "Element: $element" Done Over a Number Range Similarly, to define a range of numbers, one can ...
forelement in Hydrogen Helium Lithium Berylliumdoecho"Element:$element"done Copy The loop will produce the following output: Element: Hydrogen Element: Helium Element: Lithium Element: BerylliumCopy Loop over a range You can use the sequence expression tospecify a rangeof numbers or characters by ...
The range syntax also works for letters. For example: #!/bin/bash # For loop with letter range for i in {a..f} do echo "Element $i" done The script outputs letters to the console in ascending order in the provided range. The range syntax works for elements in descending order if ...
Shell/Bash 变量/variable 循环/loop 如何在bash脚本里面进行循环 #!/bin/bashn=9999for(( i =1; i<=100;i++))do/root/testProgram$nsleep5 n=$((n+1))done REFER:How to increment a variable in bash?