This is a series of posts detailing different methods of printing out a graphical representation of a tree in using a bash shell script. It culminates in the building of a recursive shell script. Breaking down Dem Pilafian’s one line command to display a tree of a directory Breaking down Dem Pilafian’s script that uses…
This is a series of posts exploring bash arrays, from the basics to more advanced usages. I began the series in an attempt to understand bash arrays as I was building the Shell Tree script How to declare an array and set its elements How to get the indices of an array How to cycle…
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 We broke down Dem Pilafian’s script that uses the one line command Setup Directory and Script Setup Please…
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 # # #…
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.…