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27 lines
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507 B
Markdown
27 lines
No EOL
507 B
Markdown
---
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title: "Quick Bash: Check Argument Count"
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date: 2020-12-15T09:25:11-05:00
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draft: false
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tags: ["bash"]
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---
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I've been writing more bash scripts recently and I noticed that I often check for the number of arguments before validating them in my scripts. I'll share that small snippet here for my future self.
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```bash
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#!/bin/sh
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set -o errexit
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set -o nounset
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set -o pipefail
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show_usage() {
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echo "Usage: script [arg1]"
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exit 1
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}
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# Check argument count
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if [ "$#" -ne 1 ]; then
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show_usage
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fi
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``` |