You can traverse through the array elements and print it, using looping statements in bash. the size of the array: echo ${#files[@]} 5 3.4 Filling the Extra Space When printing a small number like 27in a %5dfield, the question then became where to put the 27and what to put in the other three slots. If the index number is @ or *, all members of an array are referenced. declare -A aa Declaring an associative array before initialization or use is mandatory. You can initialize elements one at a time as follows: aa[hello]=world aa[ab]=cd aa["key with space"]="hello world" You can also initialize an entire associative array … You can also print out all the array elements at once: echo ${files[*]} f1.txt f2.txt f3.txt f4.txt f5.txt. The normal way is to avoid this and just pass the array values as arguments. Declare an associative array. The empty spaces could be filled with the What you're doing is tricky. I'm getting started with bash scripting. You can only use the declare built-in command with the uppercase “-A” option.The += operator allows you to append one or multiple key/value to an associative Bash array. This is also the case with echo command. Here’s the output of the above script: Ubuntu Linux Mint Debian Arch Fedora Method 2: Split string using tr command in Bash. You can print the total number of the files array elements, i.e. As of bash 4.2, you can just use a negative index ${myarray[-1]} to get the last element. Of course, you should remember to save the original IFS content and put the original content back after the script runs. It could be printed in the first two spaces, the last two spaces, or maybe the middle two spaces (if that can be deter-mined). Note that there has to be no space around the assignment operator =. Bash Associative Array (dictionaries, hash table, or key/value pair) You cannot create an associative array on the fly in Bash. There are different ways to print the whole elements of the array. Print the Whole Bash Array. This is the bash split string example using tr (translate) command: When writing a bash scripts most of us by default use echo command as means to print to standard output stream. I tried to set the space character using the \ symbol, but this doesn't help. Initialize elements. echo is easy to use and mostly it fits our needs without any problem. However, with simplicity very often comes limitation. In the code below, the third array element is "Accessory Engine". I'm working with array elements that contain space characters. This is because I intend to introduce bash loop concepts later in this series. The sed based solutions will transform it in -option1 -option2 -with -space - option3 (length 5), but the above bash expansion will transform it into -option1 Bash arrays have numbered indexes only, but they are sparse, ie you don't have to define all the indexes. 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