bash 使用 --getopts 来获取整个单词的标志
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原文地址: http://stackoverflow.com/questions/22025793/
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Using --getopts to pick up whole word flags
提问by kid_x
Can getopts be used to pick up whole-word flags?
可以使用 getopts 来获取全字标志吗?
Something as follows:
如下:
while getopts ":abc --word" opt; do
case ${opt} in
a) SOMETHING
;;
...
--word) echo "Do something else."
;;
esac
done
Trying to pick up those double-dash flags.
试图拿起那些双破折号标志。
采纳答案by kid_x
Found one way to do this:
找到了一种方法来做到这一点:
while getopts ":abc-:" opt; do
case ${opt} in
a) echo "Do something"
;;
...
-)
case ${OPTARG} in
"word"*) echo "This works"
;;
esac
esac
done
By adding -: to the opstring and adding a sub-case using $OPTARG, you can pick up the long option you want. If you want to include an argument for that option, you can add * or =* to the case and pick up the argument.
通过将 -: 添加到操作字符串并使用 $OPTARG 添加子案例,您可以选择所需的长选项。如果您想为该选项包含一个参数,您可以在案例中添加 * 或 =* 并选择该参数。
回答by Ark
回答by Keenan
Basically Ark's answer but easier and quicker to read than the mywiki page:
基本上是 Ark 的答案,但比 mywiki 页面更容易、更快地阅读:
#!/bin/bash
# example_args.sh
while [ $# -gt 0 ] ; do
case in
-s | --state) S="" ;;
-u | --user) U="" ;;
-a | --aarg) A="" ;;
-b | --barg) B="" ;;
esac
shift
done
echo $S $U, $A $B
#$
is the number of arguments, -gt
is "greater than", $1
is the flag in this case, and $2
is the flag's value.
#$
是参数的数量,-gt
是“大于”,$1
在这种情况下$2
是标志,是标志的值。
./example_args.sh --state IAM --user Yeezy -a Do --barg it
results in:
./example_args.sh --state IAM --user Yeezy -a Do --barg it
结果是:
IAM Yeezy, Do it