12-29-2008
As has been explained to you, Linux (the Kernel) and many of the accompanying software is open source.
This means that you are free to edit the files as you wish without fear of reprisals in the form of copyright violations and such for the changes. Other software vendors do not allow you to make these changes to their code as they are proprietary.
Linux does not have "System Files" in so much as what you seem to be describing.
You cannot simply go in and muck about.
You CAN however change parameters of running machines, and do a lot more. What do you wish to change and what are you trying to learn from this?
read up on sysctl and how it can change parameters of the kernel on a running machine. However, be aware that changes you make can disrupt running processes as well as the stability of the machine.
As for editing files in linux, also look up "vi" or "vim" and use that to edit the files themselves, as they are text based editors found on nearly every UNIX or UNIX-Like operating system.
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LEARN ABOUT DEBIAN
rscript
Rscript(1) FSF Rscript(1)
NAME
Rscript - front end for scripting with R
SYNOPSIS
Rscript [--options] [-e expr] file [args]
DESCRIPTION
A binary front-end to R, for use in scripting applications.
expr An optional expression to be evaluated, used in place of expr.
file Input file of R expressions
args Optional further arguments to be processed by commandArgs in the R interpreter.
OPTIONS
--options accepted are
--help Print usage and exit
--version
Print version and exit
--verbose
Print information on progress
--default-packages=list
Where 'list' is a comma-separated set of package names, or 'NULL'
and also options to R (in addition to --slave --no-restore), such as
--save Do save workspace at the end of the session
--no-environ
Don't read the site and user environment files
--no-site-file
Don't read the site-wide Rprofile
--no-init-file
Don't read the user R profile
--restore
Do restore previously saved objects at startup
--vanilla
Combine --no-save, --no-restore, --no-site-file --no-init-file and --no-environ
SEE ALSO
R(1)
R scripting April 2007 Rscript(1)