Re: [R] R command execution from shell
Thank you for this alternative. Both seem to work on my systems.
Sebastien
Prof Brian Ripley wrote:
On Tue, 4 Jan 2011, Duncan Murdoch wrote:
On 04/01/2011 3:21 PM, Sebastien Bihorel wrote:
Dear R-users,
Is there a way I can ask R to execute the write(hello
world,file=hello.txt) command directly from the UNIX shell, instead
of having to save this command to a .R file and execute this file
with R
CMD BATCH?
Yes. Some versions of R support the -e option on the command line to
execute a particular command. It's not always easy to work out the
escapes so your shell passes all the quotes through... An
alternative is to echo the command into the shell, e.g.
echo 'cat(hello)' | R --slave
(where the outer ' ' are just for bash).
It is marginally preferable to use Rscript in place of 'R --slave'.
I think in all known shells
Rscript -e write('hello world', file = 'hello.txt')
will work. (If not, shQuote() will not work for that shell, but this
does work in sh+clones, csh+clones, zsh and Windows' cmd.exe.)
__
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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.
[R] R command execution from shell
Dear R-users, Is there a way I can ask R to execute the write(hello world,file=hello.txt) command directly from the UNIX shell, instead of having to save this command to a .R file and execute this file with R CMD BATCH? Thank you Sebastien __ 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.
Re: [R] R command execution from shell
On 04/01/2011 3:21 PM, Sebastien Bihorel wrote: Dear R-users, Is there a way I can ask R to execute the write(hello world,file=hello.txt) command directly from the UNIX shell, instead of having to save this command to a .R file and execute this file with R CMD BATCH? Yes. Some versions of R support the -e option on the command line to execute a particular command. It's not always easy to work out the escapes so your shell passes all the quotes through... An alternative is to echo the command into the shell, e.g. echo 'cat(hello)' | R --slave (where the outer ' ' are just for bash). Duncan Murdoch __ 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.
Re: [R] R command execution from shell
Thank you That is exactly what I was looking for. Sebastien Duncan Murdoch wrote: On 04/01/2011 3:21 PM, Sebastien Bihorel wrote: Dear R-users, Is there a way I can ask R to execute the write(hello world,file=hello.txt) command directly from the UNIX shell, instead of having to save this command to a .R file and execute this file with R CMD BATCH? Yes. Some versions of R support the -e option on the command line to execute a particular command. It's not always easy to work out the escapes so your shell passes all the quotes through... An alternative is to echo the command into the shell, e.g. echo 'cat(hello)' | R --slave (where the outer ' ' are just for bash). Duncan Murdoch __ 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.
Re: [R] R command execution from shell
On Tue, 4 Jan 2011, Duncan Murdoch wrote:
On 04/01/2011 3:21 PM, Sebastien Bihorel wrote:
Dear R-users,
Is there a way I can ask R to execute the write(hello
world,file=hello.txt) command directly from the UNIX shell, instead
of having to save this command to a .R file and execute this file with R
CMD BATCH?
Yes. Some versions of R support the -e option on the command line to execute
a particular command. It's not always easy to work out the escapes so your
shell passes all the quotes through... An alternative is to echo the command
into the shell, e.g.
echo 'cat(hello)' | R --slave
(where the outer ' ' are just for bash).
It is marginally preferable to use Rscript in place of 'R --slave'.
I think in all known shells
Rscript -e write('hello world', file = 'hello.txt')
will work. (If not, shQuote() will not work for that shell, but this
does work in sh+clones, csh+clones, zsh and Windows' cmd.exe.)
--
Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UKFax: +44 1865 272595
__
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.
