[Rd] request to add argv[0]

[ivo welch]

Dear R Developers:  This has come up repeatedly in the r-help mailing
list, most recently in a thread started by myself.  The answers have
been changing over the years.  Would it be possible and easy for R to
offer a global read-only option that gives the name of the currently
executing R script, i.e., the equivalent of argv[0] in C?

  (PS: An even better mechanism would be the ability to pick off multiple
   arguments following the .R file, different from commandArgs(),
   but this is not as important and probably more difficult as it would change
   the invokation syntax of R.)

sincerely,

/ivo welch