:: Re: [DNG] [OT] bash / quote weirdne…
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著者: william moss
日付:  
To: dng
題目: Re: [DNG] [OT] bash / quote weirdness
On 1/12/22 04:39, Alessandro Vesely via Dng wrote:
> On Wed 12/Jan/2022 01:27:45 +0100 Florian Zieboll via Dng wrote:
>> On Tue, 11 Jan 2022 18:52:10 -0500
>> william moss <bill.m.moss@???> wrote:
>>
>>> Bash is taking the string in the double quotes as a single command;
>>> this is well documented. If either the command or parameters have
>>> spaces, you will have to use eval. Check the bash man page for
>>> details.
>>>
>>> This will also usually work
>>>     X=$( "command and such" )
>>> due to the execute block.
>>
>> I am replying to the list to share the valid (tested) alternative.
>> Thanks a lot!
>
>
> Bash still considers a quoted command as such, for example:
>
> ale@pcale:~/tmp$ X=$("echo foo")
> bash: echo foo: command not found
>
>
> Best
> Ale


X=$( eval "echo foo" )

echo "$X"

foo

-- 
William (Bill) Moss
billmoss@???
NY (USA)
     Those who will not reason, are bigots,
     those who cannot, are fools,
     and those who dare not, are slaves.
Lord Byron


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Benjamin Franklin


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     tyranny, when the government fears the people
     there is liberty.
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