Linux: Shell脚本实现支持长选项参数

sh
#!/bin/bash
# 定义短选项和长选项
SHORT_OPTS="hv"
LONG_OPTS="help,version,input:,output:"
<h1>解析命令行选项</h1><p>PARSED_OPTS=$(getopt -o $SHORT_OPTS -l $LONG_OPTS -- "$@")
if [[ $? -ne 0 ]]; then
exit 1
fi</p><h1>将解析结果设置为位置参数</h1><p>eval set -- "$PARSED_OPTS"</p>
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                <h1>初始化变量</h1><p>input_file=""
output_file=""</p><h1>处理选项</h1><p>while true; do
case "$1" in
-h|--help)
echo "Usage: $0 [options]"
echo "  -h, --help      Show help"
echo "  -v, --version   Show version"
echo "  --input FILE    Specify input file"
echo "  --output FILE   Specify output file"
shift
exit 0
;;
-v|--version)
echo "$0 version 1.0"
shift
exit 0
;;
--input)
input_file="$2"
shift 2
;;
--output)
output_file="$2"
shift 2
;;
--)
shift
break
;;
*)
echo "Invalid option: $1"
exit 1
;;
esac
done</p><h1>打印解析结果</h1><p>echo "Input file: $input_file"
echo "Output file: $output_file"

sh</p><h1>!/bin/bash</h1><h1>初始化变量</h1><p>input_file=""
output_file=""</p><h1>处理命令行参数</h1><p>while [[ $# -gt 0 ]]; do
case "$1" in
-h|--help)
echo "Usage: $0 [options]"
echo "  -h, --help      Show help"
echo "  -v, --version   Show version"
echo "  --input FILE    Specify input file"
echo "  --output FILE   Specify output file"
exit 0
;;
-v|--version)
echo "$0 version 1.0"
exit 0
;;
--input)
input_file="$2"
shift 2
;;
--output)
output_file="$2"
shift 2
;;
*)
echo "Invalid option: $1"
exit 1
;;
esac
done</p><h1>打印解析结果</h1><p>echo "Input file: $input_file"
echo "Output file: $output_file"