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#!/bin/bash | |
### | |
### my-script — does one thing well | |
### | |
### Usage: | |
### my-script <input> <output> | |
### | |
### Options: | |
### <input> Input file to read. | |
### <output> Output file to write. Use '-' for stdout. | |
### -h Show this message. | |
help() { | |
sed -rn 's/^### ?//;T;p' "$0" | |
} | |
if [[ $# == 0 ]] || [[ "$1" == "-h" ]]; then | |
help | |
exit 1 | |
fi | |
echo Hello World |
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