39 lines
1.5 KiB
Markdown
39 lines
1.5 KiB
Markdown
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---
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title: "Bash script: random revision topic"
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slug: /revision-bash-script
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date: 2022-12-28
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tags: ["log", "productivity", "bash"]
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---
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I keep all my study notes in Markdown format in a
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[single repository]('https://github.com/thomasabishop/computer_science').
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Because I study a lot of varied topics it can sometimes seem that I am just
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writing notes and forgetting about them. This is particularly true of topics
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that I don't draw on in my everyday work.
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As a corrective I have written a script at the root of my notes repository that
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selects a random revision topic from the categories I specify. When I start
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studying each morning (I study from 6am-8am before work) I run the script and
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spend ten minutes consolidating the topic it selects. Sometimes this will just
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mean re-reading the notes but often I will rewrite or add ideas that I have
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gleaned in the period since I originally studied the topic, extending my
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understanding of the subject matter.
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```bash
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#!/bin/bash
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# Choose source directories...
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DIRS_TO_PARSE="../Computer_Architecture ../Electronics_and_Hardware ../Operating_Systems ../Programming_Languages/Shell ../Logic"
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# Return array of all files belonging to source dirs...
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for ele in $DIRS_TO_PARSE; do
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FILE_MATCHES+=( $(find $ele -name "\*.md" -type f) )
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done
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# Generate a random integer between 0 and the match array length...
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RANDOM_FILE_INDEX=$(( $RANDOM % ${#FILE_MATCHES[@]} + 0 ))
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# Return file matching that index...
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echo "Revise this topic: ${FILE_MATCHES[$RANDOM_FILE_INDEX]}"
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```
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