myArray=("Bash" "Array" "Of" "Strings") # Printing the entire array echo ${myArray[@]} # Output: # 'Bash Array Of Strings' In this example, we’ve created an arraymyArraywith four elements: “Bash”, “Array”, “Of”, and “Strings”. The[@]index is used to access all ele...
Using for loop to read a list of string values with spaces When a list of a string is read byfor-inloop and any string value contains space then the values split into words based on space if the string value is not quoted with a single or double quotation. The following example shows ...
7. Extraction with offset and length, for a particular element of an array To extract only first four elements from an array element . For example, Ubuntu which is located at the second index of an array, you can use offset and length for a particular element of an array. $cat arrayman...
In this example, we first define an array of fruits. We then use a ‘for’ loop to iterate over the array, echoing a statement for each fruit. Note the use of"${fruits[@]}"to correctly handle array items with spaces. Iterating Over Files You can also use a ‘foreach’ loop to i...
#!/bin/bash #: Description : print formatted sales report ## Build a long string of equals signs divider=== divider=$divider$divider ## Format strings for printf header="\n %-10s %11s %8s %10s\n" format=" %-10s %11.2f %8d %10.2f\n" ## Width of divider totalwidth=44 ## Pri...
combine=(str_array1 str_array2) for arrItem in ${combine[@]} do eval 'for val in "${'$arrItem'[@]}";do echo "$val";done' done Output: $ bash for_list7.sh Example-8: Using pattern to read the list of strings Create a new bash file named for_list8.sh with the following...
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...
Over Strings Over a Number Range Over Array Elements Break and Continue for Loop Break Statement Continue Statement Examples of Bash for Loops In other words, Loops are easy and best to perform repetitive tasks. Its use is even more significant when working with scripting languages such as Bash...
Note that there is no upper limit (maximum) on the size (length) of a Bash array and the values in an Indexed Array and an Associative Array can be any strings or numbers, with the null string being a valid value. 👉 Remember that the null string is a zero-length string, which ...
A simple command is the kind of command encountered most often. It’s just a sequence of words separated by blanks, terminated by one of the shell’s control operators (see Chapter 2 [Definitions], page 3). The first word generally specifies a command to be executed, with the rest of ...