On 13 April 2012 at 10:32, Martin Maechler wrote: | I think that's my first true question (rather than answer) | to R-help. | | As R has, for a long time, become my primary scripting and | programming language, I'm prefering at times to write Rscript | files instead of shell scripts, notably when R has nice ways to | do some of the things. | On a standard standalone platform with standard R, | I would start such a script with | --------------------------------------- | #! /usr/bin/Rscript --vanilla | --------------------------------------- | (yes, the "--vanilla" is important to me, in this case) | | However; as, at work, my scripts have to work correctly on quite a | few different (unixy : several flavors of Linux, Solaris, MacOS X) platforms, | *and* as an R developer, I have many different versions of R | installed simultaneously, using /usr/bin/Rscript is not an | option. | Rather, I'd use the /usr/bin/env trick : | | --------------------------------------- | #! /usr/bin/env Rscript | --------------------------------------- | | which finds Rscript in "the correct" place, according to the | current PATH. All fine till now. | | PROBLEM: It does not work with '--vanilla' or any other argument: | If I start my script with | #! /usr/bin/env Rscript --vanilla | the error message simply is | /usr/bin/env: Rscript --vanilla: No such file or directory | | I have tried a few variations on the theme, using quotes in | different places, but have not succeeded till now. | Any suggestions?
If moving away from Rscript to littler is an option: #!/usr/bin/r There is a well-known limitation for #! scripts which apparently reflect precisely one command-line argument. Because r uses getopt semantics, I *think* you can combine them as eg in #!/usr/bin/r -vti which would use --vanilla, --interactive and --rtemp toggle making sure we use temp files/dirs the way R does. However, it seems that --vanilla is now implicit as I can't get littler to read ~/.Rprofile. Somewhere between a feature and a bug :) Dirk -- R/Finance 2012 Conference on May 11 and 12, 2012 at UIC in Chicago, IL See agenda, registration details and more at http://www.RinFinance.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.
