This post is part of an educational series on building a shell script to graphically display the structure of a directory. Previously We broke down Dem Pilafian’s one line command to display a tree of a directory The Script #!/bin/sh ####################################################### # UNIX TREE # # Version: 2.3 # # File: ~/apps/tree/tree.sh # # #…
This post is part of an educational series on building a shell script to graphically display the structure of a directory. While you are surfing your linux in command line, sometimes you want to be able to see the directory structure spread out in your terminal. I personally don’t know of any native command that…
Recursion in programming is when a piece of code (usually a function) calls itself. If there is no exit case, the program will go on forever. We will be discussing recursion in a bash script with examples and discussing some peculiarities of the bash shell, such as local variables. Setup Let’s make a shell script.…
When making a bash recursive function we have to pay special attention to local variables. One special case is when we wish to pass an array to a recursive function. When making recursive function, we have to be careful how we use variables. This post will deal with passing arrays as parameters to recursive functions.…