Thanks for your help. I found another cmd as follows: R CMD BATCH infile outfile
what's the difference between this expression and your suggestion? cls59 wrote: > > > edisonying wrote: >> >> I am a beginner in R and know only a little about it yet. I have a script >> written in R language, named as "a.txt" for example. I am using a Linux >> machine, at present I only know that I can type "R" in the terminal and >> then copy-paste the content in "a.txt" to the R's interface to execute >> the program. However, I want to know if there is any method that allows >> me to add some input arguments directly after the "R" in the terminal. >> Specifically, I want to type the following in the cmd line: >> >> R (some flags or option) a.txt >> >> then the program will begin to run. Besides, if the program will read a >> data file first, can I also specify the data file in the command line? >> Then the complete command will become: >> >> R a.txt data.txt >> >> This is important for a beginner. Thanks very much!:working: >> >> > > We usually have R execute scripts in the following manner: > > R --vanilla --slave --args [your args here] < scriptFile.R > > Inside scriptFile.R the arguments can be retrieved by using > commandArgs(trailingOnly = T). The trailingOnly flag causes only the > arguments following --args to be be returned and not --args, --vanilla (no > save, no restore, quick startup) and --slave (makes R run quiet). > > Personally, I get tired of typing R --vanilla --slave --args all the time > and prefer to use Rscript. Since you are using Linux you can do the same > by putting the following hashbang at the top of your file: > > #!/usr/bin/env Rscript > > Then your script can be run using: > > ./scriptFile.R [your args here] > > The arguments are still accessed inside the script using commandArgs(T) > > Good luck! > > -Charlie > > -- View this message in context: http://www.nabble.com/how-to-run-a-R-program-with-input-arguments-tp24465852p24472117.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
