Hi, That seems quite neat. To make it a bit more flexible, and maybe do some argument acrobatics with bash, you could change the first few lines to something like
#!/bin/bash exec R --vanilla -q --slave -e "source(file=pipe(\"sed -n /^##RSTART/,\$p $0\"))" --args $@ ##RSTART # Script here Cheers, Tsjerk On Mon, Mar 29, 2010 at 6:31 PM, Jason E. Aten <j.e.a...@gmail.com> wrote: > Thanks Gabor. I didn't realize you could. Here is the scriptdemo.rsh file > as a text attachment, in case the line wraps made it hard to read/use. > > - Jason > > On Mon, Mar 29, 2010 at 11:19 AM, Gabor Grothendieck < > ggrothendi...@gmail.com> wrote: > >> Thanks. >> >> You might want to repost it as a text attachment since many of the >> lines wrapped around. >> >> Another more permanent possibility would be to put it on the R wiki at >> http://rwiki.sciviews.org/doku.php >> >> Note that the gsubfn package has a facility for quasi-perl type string >> interpolation as well. Just preface any function with fn$ and the >> facility is applied to the arguments of the function (subject to >> certain heuristics which determine which args to apply it to). >> >> > library(gsubfn) >> > today <- format(Sys.Date()) >> > show <- list() >> > show$syntax <- 43 >> > Sys.setenv(AN_ENV_VAR="greetings (I'm an env var!)") >> > >> > fn$cat('Getting `Sys.getenv("AN_ENV_VAR")` from the environment, on >> $today, >> + `show$syntax` is also possible.\n') >> Getting greetings (I'm an env var!) from the environment, on 2010-03-29, >> 43 is also possible. >> >> >> >> On Mon, Mar 29, 2010 at 11:41 AM, Jason E. Aten <j.e.a...@gmail.com> >> wrote: >> > Dear R users, >> > >> > A colleague of mine asked me how to write a script (an executable text >> file >> > containing R code) in R. After I showed >> > him, he said that after extensive searching of the R archives, he had not >> > found anything like these techniques. >> > >> > He suggested that I share these methods to enable others to leverage R as >> a >> > better alternative to bash/perl scripts. >> > >> > So in the interest of giving back to the R community, and with all >> humility, >> > I offer the >> > following small demonstration of one method for creating scripts of R >> code >> > that are >> > executable from the (at least Linux) command line. >> > >> > I don't make any warrantees that this will work for you, but if it helps >> > somebody at least >> > get starting utilizing R effectively in scripts, then great! >> > >> > Best regards, >> > >> > Jason >> > >> > -- >> > Jason E. Aten, Ph.D. >> > >> > >> > # file: scriptdemo.rsh >> > >> > > ______________________________________________ > 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. > > -- Tsjerk A. Wassenaar, Ph.D. post-doctoral researcher Molecular Dynamics Group Groningen Institute for Biomolecular Research and Biotechnology University of Groningen The Netherlands ______________________________________________ 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.
