我知道 $*
、$@
、"$@"
甚至 ${1+"@"}
以及它们的含义.
I know about $*
, $@
, "$@"
and even ${1+"@"}
and what they mean.
我需要从 shell 脚本访问 EXACT 命令行参数字符串.请注意示例中的引号.像$@"这样的东西会保存参数但会删除引号,我不知道如何从中恢复.
I need to get access to the EXACT command-line arguments string from a shell script. Please pay attention to the quotes in the example. Anything like "$@" saves parameters but removes quotes and I don't see how to recover from this.
例子:
./my-shell.sh "1 2" 3
./my-shell.sh "1 2" 3
而且我需要在不进行任何处理的情况下检索 EXACT 参数字符串:
And I need to retrieve the EXACT parameter string without any processing:
1 2"3
知道如何实现吗?
在 bash
中,你可以从 shell 历史中得到这个:
In bash
, you can get this from the shell history:
set -o history
shopt -s expand_aliases
function myhack {
line=$(history 1)
line=${line#*[0-9] }
echo "You wrote: $line"
}
alias myhack='myhack #'
如你所描述的那样工作:
Which works as you describe:
$ myhack --args="stuff" * {1..10} $PATH
You wrote: myhack --args="stuff" * {1..10} $PATH
另外,这里有一个方便的图表:
Also, here's a handy diagram: