我看到了类似做法:
while getopts ":hv-:" optchar; do
...
done
谁使用最后一种方法?
在“号”栏中,最后一栏是用来表示选择结束的。 这常常被称为“双向”或“选择前”标记。 它告诉大家,在标识之后出现的任何论点都应作为位置参数处理,而不是作为选择处理。
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