R CMD command, while mimicking the current R sessionThis function is similar to rcmd(), but it has slightly different
defaults:
The repos options is unchanged.
No extra environment variables are defined.
rcmd_copycat(cmd, cmdargs = character(), libpath = .libPaths(),
repos = getOption("repos"), env = character(), ...)Command to run. See R --help from the command
line for the various commands. In the current version of R (3.2.4)
these are: BATCH, COMPILE, SHLIB, INSTALL, REMOVE, build,
check, LINK, Rprof, Rdconv, Rd2pdf, Rd2txt, Stangle,
Sweave, Rdiff, config, javareconf, rtags.
Command line arguments.
The library path.
The repos option. If NULL, then no
repos option is set. This options is only used if
user_profile or system_profile is set FALSE,
as it is set using the system or the user profile.
Environment variables to set for the child process.
Additional arguments are passed to rcmd().