Why don't you use 'unlink':

unlink('c:/Program Files/DOSPROGRAM/input.dat')

If you really want to use 'del', then you have to invoke the command
processor:

system('cmd /c del "c:\\Program Files\\DOSPROGRAM\\input.dat"')


On 1/26/06, Taka Matzmoto <sell_mirage_ne@hotmail.com> wrote:
>
> HI R users
> I have one question for using DOS command through "system"
> I like to delete a file that is located at C:\Program
> Files\DOSPROGRAM\input.dat
> I can use a DOS command "del" on Dos prompt like this
>
> C:\Documents and Settings> del "C:\Program Files\DOSPROGRAM\input.dat"
>
> to delete input.dat file.
>
> When I try to do the same thing on R using "system" command
>
> system('del "C:\Program Files\DOSPROGRAM\input.dat"')
> or
> system("del "C:\Program Files\DOSPROGRAM\input.dat"")
> or
> system(paste("del", "\"C:\\Program Files\\DOSPROGRAM\\input.dat\"",sep="
> "))
>
> All the three system commands did work
>
> Could you help me to figure out ?
>
> Thanks in advance
>
> TM
>
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--
Jim Holtman
Cincinnati, OH
+1 513 247 0281

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