[R] how to run system command
William Dunlap
wdunlap at tibco.com
Wed Mar 7 18:27:57 CET 2012
You wrote:
> Works for me:
>> e <- system("date", intern=TRUE)
>> e
>[1] "Wed Mar 7 08:58:32 GMTST 2012"
I suspect you have cygwin\bin in your PATH variable,
as that does not look like Windows date command:
> system("cmd.exe /c date /T")
Wed 03/07/2012
> shell("date /T")
Wed 03/07/2012
> shell("date") # asks for new date if no /T
The current date is: Wed 03/07/2012
Enter the new date: (mm-dd-yy) Warning messages:
1: running command 'C:\Windows\system32\cmd.exe /c date' had status 1
2: In shell("date") : 'date' execution failed with error code 1
sessionInfo() does not report PATH's contents. You can
look at it with
strsplit(Sys.getenv("PATH"), .Platform$path.sep)[[1]]
Bill Dunlap
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
> Behalf Of Keith Jewell
> Sent: Wednesday, March 07, 2012 1:02 AM
> To: r-help at stat.math.ethz.ch
> Subject: Re: [R] how to run system command
>
> Works for me:
> --------------------------
> > sessionInfo()
> R version 2.14.1 (2011-12-22)
> Platform: i386-pc-mingw32/i386 (32-bit)
>
> locale:
> [1] LC_COLLATE=English_United Kingdom.1252 LC_CTYPE=English_United
> Kingdom.1252 LC_MONETARY=English_United Kingdom.1252
> [4] LC_NUMERIC=C LC_TIME=English_United
> Kingdom.1252
>
> attached base packages:
> [1] grDevices datasets splines graphics stats tcltk utils
> tools methods base
>
> other attached packages:
> [1] CBRIutils_1.0 stringr_0.5 svSocket_0.9-51 TinnR_1.0.3
> R2HTML_2.2 Hmisc_3.8-3 survival_2.36-10
>
> loaded via a namespace (and not attached):
> [1] cluster_1.14.1 grid_2.14.1 lattice_0.20-0 plyr_1.7.1
> svMisc_0.9-63
> > e <- system("date", intern=TRUE)
> > e
> [1] "Wed Mar 7 08:58:32 GMTST 2012"
> ----------------
>
> What's your sessionInfo()?
>
> KJ
>
>
> "sagarnikam123" <sagarnikam123 at gmail.com> wrote in message
> news:1331041713089-4449906.post at n4.nabble.com...
> >i used it on windows system, but giving error like
> >
> >> e <- system("date", intern=TRUE)
> > Error in system("date", intern = TRUE) : 'date' not found
> >
> > --
> > View this message in context:
> > http://r.789695.n4.nabble.com/how-to-run-system-command-
> tp4449597p4449
> > 906.html Sent from the R help mailing list archive at Nabble.com.
> >
>
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