stringList=WordPress,Joomla,Magento # Use comma as separator and apply as pattern for val in ${stringList//,/ } do echo $val done Output: $ bash for_list8.sh Hope, the examples of this tutorial will help you to understand the use of for loop for iterating the list of strings, for...
Now let's look at standard Bash for Loop over Strings. 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: $element" Done Over a Number ...
The most simple use of ‘for’loop is to read a list of string or numeric data. The list of numeric data is iterated by usingfor-inloop in the following example. Here, four numbers will be read in the variable,$nin each step of the loop and printed. Create a bash file with the f...
Loop over strings The example below shows a loop that iterates over a list of strings. The loop operates on each item in the list, and the variable element stores the item that the loop is currently operating on. for element in Hydrogen Helium Lithium Beryllium do echo "Element: $element...
The above for loop can of course be re-written easily with a three-expression loop.for (( i=0; i <= 100 ; i=i+5 )); do echo "count $i" done Example #2: Iterate over a List of Strings in for Loop in bashfruit_list=('apple' 'orange' 'kiwi' 'pear' 'watermelon') for ...
Another syntax variation of for loop also exists that is particularly useful if you are working with a list of files (or strings), range of numbers, arrays, output of a command, etc. The list/range syntax for loop takes the following form: ...
This type of for loop is characterized by counting. The range is specified by a beginning (#1) and ending number (#5). The for loop executes a sequence of commands for each member in a list of items. A representative example in BASH is as follows to display welcome message 5 times wit...
While ShellCheck is mostly intended for interactive use, it can easily be added to builds or test suites. It makes canonical use of exit codes, so you can just add ashellcheckcommand as part of the process. For example, in a Makefile: ...
Variable names with a dollar sign can also be used inside other strings in order to insert the value of the variable into the string: echo"I went to school in$the_empire_state." ## I went to school in New York. When writing a Bash script, the script gives you a few variables for...
Let’s look at a simple example of a ‘for’ loop acting as a ‘foreach’ loop: forfruitinApple Banana Cherry;doecho"I love$fruit";done# Output:# I love Apple# I love Banana# I love Cherry Bash Copy In this example, the ‘for’ loop iterates over the list of fruits (Apple, ...