BASH For Loop Examples Example-1: Iterating a string of multiple words within for loop Create a bash file named ‘for_list1.sh’ and add the following script. A string value with spaces is used within for loop. By default, string value is separated by space. For loop will split the ...
Bash Script for Loop Use theforloop to iterate through a list of items to perform the instructed commands. The basic syntax for theforloop in Bash scripts is: for <element> in <list> do <commands> done The element, list, and commands parsed through the loop vary depending on the use c...
5. Loop through files and directories in a for loop To loop through files and directories under a specific directory, just cd to that directory, and give * in the for loop as shown below. The following example will loop through all the files and directories under your home directory. $ c...
What is For Loop in Bash Script For loop is a control structure that is used to perform repetitive tasks or execute a bunch of commands a specific number of times. With for loop, you can iterate through numbers, lists, files, or even directories. Bash For Loop: POSIX Style Syntax The P...
list of values contains 5 items, the for loop will be executed a total of 5 times, once for each item in the list. The current item from the list will be stored in a variable “varname” each time through the loop. This “varname” can be processed in the body of the for loop....
list of items has to be written out explicitly in the script itself (although it can be, and often is). It can iterate through each of the words in a file, through the content of a variable, or even through the output of other commands. The simplest form offoris to give it a set...
Next, we need to prompt the user for a valid directory to loop through. To accept user input, we use the echo command in Bash. For example: #!/bin/bash echo“Enter the directory” readdir cd$dir echo“Nowin/etc” Move Files (Bash Script) ...
Linux Bash Script loop shell 编程之流程控制 for 循环、while 循环和 until 循环 for var in item1 item2 ... itemN do command1 command2 ... commandN done 1. 2. 3. 4. 5. 6. 7. for var in item1 item2 ... itemN; do command1; command2… done; ...
[student@testvm1 ~]$ script1.sh /home/dboth/bin/script1.sh[student@testvm1 ~]$ The output from this script is the name of the script. The$0parameter is reserved and predefined as the name of the running script and cannot be used for any other purpose. This can be handy inside a...
done: Indicates the end of a loop block. case: Used for creating a switch statement, allowing the execution of different commands based on the value of a variable. These keywords help structure the flow of a Bash script, making it possible to perform complex tasks and automate various process...