> -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] > On Behalf Of Rui Barradas > Sent: Monday, April 14, 2014 12:09 PM > To: Doran, Harold; r-help@r-project.org > Subject: Re: [R] system() > > Hello, > > Try instead > > command <- paste(aa, fnm) > system(command) > > And read the help page for ?paste > > Hope this helps, > > Rui Barradas > > > Em 14-04-2014 20:02, Doran, Harold escreveu: > > I need to send a system command to another program from within R but > have a small hangup > > > > I'm trying to do something like this > > > > system("notepad myfile.txt") > > > > But, more generally this is happening to multiple files, so I loop over > thousands of files. For purposes of an example, my code is something like > this, which does not work > > > > aa <- 'notepad.exe' > > fnm <- 'myfile.txt' > > system("aa fnm") > > > > Any suggestions? > > Harold > >
Harold, you haven't said what OS you are running under, but given that your example program was notepad.exe I am going to guess some flavor of MS Windows. The suggestion to use paste() is necessary, but it will probably not be sufficient to solve your problem. The commands suggested > command <- paste(aa, fnm) > system(command) freezes R on my Win 7 Pro x64 box using either 64-bit R-3.0.3 or R-3.1.0. You might try switching to shell() instead of system() > command <- paste(aa, fnm) > shell(command) However, it all depends on what programs you are trying to run and what behavior you expect. Dan Daniel Nordlund Bothell, WA USA ______________________________________________ R-help@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.
