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Shell Scripting

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Tracing is your friend!

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A huge part of programming in general is learning how to troubleshoot something, not just having someone else fix it for you. One of the basic ways to do that is by tracing. Not only can this help you figure out what your script is doing and how it's doing it, but in the event that you need help from another person, posting the output can be beneficial to the person attempting to help.

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f5n : Shell scripts

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Run a shell script whenever a file in a certain directory changes?

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Using a shell script, can I watch a folder and block program execution until a file in a certain folder changes?

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The Shell Scripting Tutorial: Parsing long command-line arguments with getopt

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This is a little tutorial that I found in my search to learn how to use getopt (mind: not getopts, which is a completely different thing). I want to share it here because I find it refreshingly to the point. Just the main code block already tells almost the whole story:

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(Solved) Ways to run the join command on memory/variable contents instead of files?

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Edit: I figured it out: The solution is over a process substitution operator:

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Say you have a list of increasing numbers and a threshold. How do you get the highest number smaller-or-equal to the threshold *and* all numbers that are larger?

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Let me show you what I mean by giving an example:

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Created a tool for Rsync transfers

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Ever since I started down the self-hosting rabbit hole one issue I've been constantly annoyed with is transferring files between machines. Especially files which I am currently working on and that I want to periodically transfer to a specific remote location.

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Looking for help: Running the same commands for multiple, similar variables

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For fun, convenience and a chance to learn shell scripting for myself, I've been working on a collection of scripts to semi-automate the backup of my computer, two network connected Raspberry Pi's and my Android phone with Termux.

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