On Sat, Apr 14, 2012 at 01:35:38AM +0000, Amadeus W.M. wrote:
> So here is the question. Suppose I have several processes that run
> concurrently and each outputs stuff to stdout. Can the combined output be
> intermingled?
If you just send the output to a file, you've no way of knowing exactly
when it will be output, or whether it will be buffered before writing.
You can mitigate this a bit by making every output line have a sequence and
process identifier--the PID and date in seconds would work--so you could
separate the streams later.
If you really would like to get output in sequence, write to a pipe, and
have a reader process drain the pipe to a logfile. It's pretty easy; look
at "mknod" with the 'p' option, or "mkfifo". I'd still suggest tagging
each output line with an identifier and sequence number.
Cheers,
--
Dave Ihnat
dih...@dminet.com
--
users mailing list
users@lists.fedoraproject.org
To unsubscribe or change subscription options:
https://admin.fedoraproject.org/mailman/listinfo/users
Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Have a question? Ask away: http://ask.fedoraproject.org
