Hello, As you can see from my signature in this message, I use the R
fortune function to generate a fortune, which is then fed to the
signature program, which constructs a named pipe containing the
fortune-bearing sig, which is then included in mail messages. The
problem is that it's got extraneous junk in it and I can't figure out
how to get rid of it. This is the command that generates the fortune:
/usr/bin/R --no-save --no-restore -q < /home/sl70/print-fortune.R
(where print-fortune.R is just
library(fortunes)
fortune()
)
This produces this:
> library(fortunes)
> fortune()
Michael Watson: Hopefully this one isn't in the manual or I am about to get
shot :-S
Peter Dalgaard: *Kapow*...
-- Michael Watson and Peter Dalgaard (question on axis())
R-help (February 2006)
>
I would like to remove the first two lines and the last line, so I
changed the command to this:
/usr/bin/R --no-save --no-restore < /home/sl70/print-fortune.R |tail \
-n +23 | head -n -2 2> /dev/null
That give the desired result when I run it at the command line, but when
I feed it to the signature program, I get this message:
Program /usr/local/bin/r-fortune doesn't seem to exist
This is the signature program code that produces this error:
/* check for existence of program by forking and then trying to
exec() it in the child */
pid = fork();
switch (pid) {
case -1: /* oh well */
perror("Couldn't fork() a child process");
exit(EXIT_FAILURE);
case 0: /* in child */
/* close stdout */
close(1);
execlp(producer, producer, (char *) 0);
exit(EXIT_FAILURE);
default:
waitpid(pid, &exit_status, 0);
if (exit_status != EXIT_SUCCESS) {
fprintf(stderr, "Program %s doesn't seem to exist
\n",
producer);
exit(EXIT_FAILURE);
}
Unfortunately, I don't understand this at all. Can anyone give me a clue
as to what's happening?
Thanks.
--
Stuart Luppescu -=- slu .at. ccsr.uchicago.edu
University of Chicago -=- CCSR
才文と智奈美の父 -=- Kernel 2.6.33-gentoo-r2
> library(fortunes) > fortune() Overall, SAS is
about 11 years behind R and S-Plus in statistical
capabilities (last year it was about 10 years
behind) in my estimation. -- Frank Harrell (SAS
User, 1969-1991) R-help (September 2003) >
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