Bash programming - Introduction: verschil tussen versies

Versie van 30 jan 2023 09:58

How to start programming in Bash, without prior programming experience? And making sure it will be fun?

Basics

Shebang, script files, make files executable, terminal screen, editor (I use Sublime Text)
Display Hello, world!
Variables (scalars): Assigning & displaying
Commenting (#) and documenting in a structured way
Receiving user input & processing it - E.g.: Ask the user for his/her name and displaying something like Hello, <name>!
Comparisons, e.g., check for empty imput and take appropriate actions
Flow control: Loops. E.g.: Display the numbers from 1 to 100 on the screen; With a step function; Backwards
Pipelining. E.g. ls > tmp.txt
Grep; Pipelining
Passing arguments to scripts
Functions
Evaluating commands

Specifc & personal things

ln: To make shortcuts on the Desktop to whatever I often use
Man pages. E.g., man ln
Associative arrays

Explore further yourself

https://www.google.com/search?q=learning+programming+bash+from+scratch

Things I get energy from

I love the power of automating stuff, and doing things in a breeze that for non-technical people would be a hell of a job. E.g.:

WordPress: Update all prices with one small script
Remove whitespace around pictures with just one command
Using mmv to update lots of file names at once.

Why I like this? Somewhere in 2022, I did a personality test focused on primary motives and one of my main motives was confirmed to be individualism (as if I didn't know that already): I very much want to be authentic and independent, and automating is a great tool for this. Additionally, it's a selling point and even a production factor: Thanks to a growing library of functions, I can do more and more tasks under conditions (time, price) that non-programmers cannot compete with.

Some other technologies that fit this pattern - I'm not familiar with all of these:

Pipelining: Using the output of one command as the input for another command
Regular expressions: Advanced pattern matching - Can be very powerful in all kind of situations
APIs (Application Programming Interfaces)
Webservices. Example: Using Translate shell for translating stuff
AI (Artificial Intelligence).

Sources

https://dev.to/ahmedmusallam/bash-from-scratch-learn-enough-bash-to-write-your-own-scripts-189f

@@ Regel 26: / Regel 26: @@
 * https://www.google.com/search?q=learning+programming+bash+from+scratch
-== Stuff I get energy from ==
+== Things I get energy from ==
+I love the power of automating stuff, and doing things in a breeze that for non-technical people would be a hell of a job. E.g.:
 * WordPress: Update all prices with one small script
 * Remove whitespace around pictures with just one command
 * Using <code>mmv</code> to update lots of file names at once.
+Why I like this? Somewhere in 2022, I did a personality test focused on ''primary motives'' and one of my main motives was confirmed to be ''individualism'' (as if I didn't know that already): I very much want to be authentic and independent, and automating is a great tool for this. Additionally, it's a ''selling point'' and even a ''production factor'': Thanks to a growing library of functions, I can do more and more tasks under conditions (time, price) that non-programmers cannot compete with.
+Some other technologies that fit this pattern - I'm not familiar with all of these:
+* ''Pipelining'': Using the output of one command as the input for another command
+* ''Regular expressions'': Advanced pattern matching - Can be very powerful in all kind of situations
+* ''APIs (Application Programming Interfaces)''
+* Webservices. Example: Using [[Translate shell (Bash) | Translate shell]] for translating stuff
+* AI (Artificial Intelligence).
 == Sources ==
 * https://dev.to/ahmedmusallam/bash-from-scratch-learn-enough-bash-to-write-your-own-scripts-189f