[R] system() not accepting strings from cat()

[culpritNr1]

embarrasSing, not embarrasing.

You see how I became culpritNr1?





culpritNr1 wrote:
> 
> I meant charm, not sharm!
> 
> (how embarrasing...)
> 
> 
> 
> 
> culpritNr1 wrote:
>> 
>> OH! The joy!
>> 
>> It worked like a sharm.
>> 
>> Thank you.
>> 
>> culpritNr1
>> 
>> 
>> 
>> 
>> 
>> baptiste auguie-2 wrote:
>>> 
>>> 
>>> try
>>> ?paste
>>> 
>>> 
>>> baptiste
>>> 
>>> On 10 Mar 2009, at 20:01, ig2ar-saf1 at yahoo.co.uk wrote:
>>> 
>>>>
>>>> Hi again R-ists,
>>>>
>>>> How do you construct a string that you can pass to system()?
>>>>
>>>> For instance. Say I do
>>>>
>>>>> system("echo Hello!")
>>>> Hello!
>>>>
>>>> That works. Now the alternative: I need to construct the string like  
>>>> this
>>>>
>>>>> a <- "echo"
>>>>> b <- "Hello!"
>>>>> c <- "\n"
>>>>> cat(a, b, c)
>>>> echo Hello!
>>>>
>>>> Looks nice... but see what happens when I try to use it
>>>>
>>>>> system(cat(a, b, c))
>>>> echo Hello!
>>>> Error in system(command, intern) : non-empty character argument  
>>>> expected
>>>>
>>>> I have googled extensively in and out of r-lists but I can't find a  
>>>> solution.
>>>>
>>>> Can anybody help?
>>>>
>>>>
>>>>
>>>>
>>>> ______________________________________________
>>>> R-help at r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>> PLEASE do read the posting guide
>>>> http://www.R-project.org/posting-guide.html
>>>> and provide commented, minimal, self-contained, reproducible code.
>>> 
>>> _____________________________
>>> 
>>> Baptiste Auguié
>>> 
>>> School of Physics
>>> University of Exeter
>>> Stocker Road,
>>> Exeter, Devon,
>>> EX4 4QL, UK
>>> 
>>> Phone: +44 1392 264187
>>> 
>>> http://newton.ex.ac.uk/research/emag
>>> 
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>> 
>>> 
>> 
>> 
> 
> 

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