Dirk Eddelbuettel <e...@debian.org> writes: > On 28 October 2015 at 21:39, Marius Hofert wrote: > | Out of laziness I just used "R CMD batch" instead of "R CMD BATCH". I > | didn't get an error so didn't think about the consequences... One > | consequence is (at least on Mac OS X 10.11 but probably in more > | generality) that R_BATCH_OPTIONS are ignored, which was kind of fatal > | in my case... I am thus wondering whether it makes sense to either a) > | have R_BATCH_OPTIONS also be respected for "R CMD batch" or b) simply > | not allow "R CMD batch" as a valid command (so requiring to use "R CMD > | BATCH"). Both approaches might be delicate... just wanted to point > | this issue out... > > Same reason we have 'R CMD INSTALL' as there often is /usr/bin/install with > different options ... > > In general 'R CMD foo' will run for any 'foo' in the path: > > edd@max:~$ R CMD date > Wed Oct 28 21:05:01 CDT 2015 > edd@max:~$
So what is R CMD exactly doing in this example? The output is the same if I say only the command (using pwd as otherwise the time has changed...): ,---- | 09:35:03 ~$ R CMD pwd | /Users/rainerkrug | 09:35:37 ~$ R CMD pwd | /Users/rainerkrug | 09:37:44 ~$ pwd | /Users/rainerkrug | 09:37:49 ~$ `---- And this happens, except in cases where the foo is defined as a CMD in R (build, ...): ,---- | Commands: | BATCH Run R in batch mode | COMPILE Compile files for use with R | SHLIB Build shared library for dynamic loading | INSTALL Install add-on packages | REMOVE Remove add-on packages | build Build add-on packages | check Check add-on packages | LINK Front-end for creating executable programs | Rprof Post-process R profiling files | Rdconv Convert Rd format to various other formats | Rd2pdf Convert Rd format to PDF | Rd2txt Convert Rd format to pretty text | Stangle Extract S/R code from Sweave documentation | Sweave Process Sweave documentation | Rdiff Diff R output ignoring headers etc | config Obtain configuration information about R | javareconf Update the Java configuration variables | rtags Create Emacs-style tag files from C, R, and Rd files `---- Unless I miss something, is this is an inconsistency in R? Rainer > > Dirk -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Stellenbosch University South Africa Tel : +33 - (0)9 53 10 27 44 Cell: +33 - (0)6 85 62 59 98 Fax : +33 - (0)9 58 10 27 44 Fax (D): +49 - (0)3 21 21 25 22 44 email: rai...@krugs.de Skype: RMkrug PGP: 0x0F52F982
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