R devel - Feb 2006 - Spurious output white line in R script (PR#8631)

I noticed that R scripts produce a spurious white line after output.
For example, the following shell script,


#!/bin/sh
R --slave --vanilla <<EOF

cat("Hello\n")

EOF


when made executable under the name ``hello`` along the search path, behaves
like this:


$ hello | od -bc
0000000 110 145 154 154 157 012 012
          H   e   l   l   o  \n  \n
0000007



The second newline is not wanted, and I would like if R was not
producing it.



--please do not edit the information below--

Version:
 platform = i686-pc-linux-gnu
 arch = i686
 os = linux-gnu
 system = i686, linux-gnu
 status = 
 major = 2
 minor = 2.1
 year = 2005
 month = 12
 day = 20
 svn rev = 36812
 language = R

Locale:
LC_CTYPE=fr_CA.UTF-8;LC_NUMERIC=C;LC_TIME=fr_CA.UTF-8;LC_COLLATE=fr_CA.UTF-8;LC_MONETARY=fr_CA.UTF-8;LC_MESSAGES=fr_CA.UTF-8;LC_PAPER=C;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=C;LC_IDENTIFICATION=C

Search Path:
 .GlobalEnv, package:methods, package:stats, package:graphics, package:utils,
package:datasets, fp.etc, package:grDevices, Autoloads, package:base

I don't see the bug here ... you may want to explain how this  
behavior conflicts with the documentation. As of your problem, see  
below.

On Feb 22, 2006, at 1:41 PM, pinard at progiciels-bpi.ca wrote:
> I noticed that R scripts produce a spurious white line after output.
> For example, the following shell script,
>
>
> #!/bin/sh
> R --slave --vanilla <<EOF
>
> cat("Hello\n")
>
> EOF
>
>
> when made executable under the name ``hello`` along the search  
> path, behaves
> like this:
>
>
> $ hello | od -bc
> 0000000 110 145 154 154 157 012 012
>           H   e   l   l   o  \n  \n
> 0000007
>
>
>
> The second newline is not wanted, and I would like if R was not
> producing it.
>
If you don't want it, tell R to explicitly terminate in your script,  
e.g. with quit("no",0) - then there will be no new line.

Cheers,
Simon