Why Redundant Conditionals Kill Readability in Bash

📰 Medium · DevOps

Learn how to simplify conditional statements in Bash to improve readability and reduce errors

intermediate Published 12 Jun 2026

Action Steps

Simplify conditional statements by removing unnecessary negations using the ! operator
Use the -a and -o operators to combine conditions instead of using || and &&
Apply the De Morgan's laws to simplify complex conditions
Test and refactor existing scripts to improve readability
Use tools like shellcheck to identify and fix redundant conditionals

Who Needs to Know This

Developers and DevOps teams can benefit from this knowledge to write more efficient and readable Bash scripts

Key Insight

💡 Removing redundant conditionals and simplifying conditional statements can significantly improve the readability and maintainability of Bash scripts

Key Takeaways

Learn how to simplify conditional statements in Bash to improve readability and reduce errors

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Title: Why Redundant Conditionals Kill Readability in Bash

URL Source: https://medium.com/@u.mair/why-redundant-conditionals-kill-readability-in-bash-aa528908ac8f?source=rss------devops-5

Published Time: 2026-06-12T20:55:21Z

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# Why Redundant Conditionals Kill Readability in Bash

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Jun 12, 2026

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I want to quickly talk about a small part of Bash scripting that can make a script either easy to read or needlessly painful. I mean the way we write conditions, and more narrowly, the way we use negation with `!`.

I started thinking about this after I came across this check in a script:

if [[ ! -f "$file" || ! -r "$file" || ! -w "$file" ]]; then

echo "Error: File is missing or does not have read/write permissions"

# exit 1

fi
At first glance, there is nothing wrong with it. The script checks whether the path is not a regular file, whether it cannot be read, or whether it cannot be written to. If any on

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Why Redundant Conditionals Kill Readability in Bash

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