Hi Narasimha, first of all, if your code is not confidential or anything like that, then please include it here, or alternatively using a paste site such as http://pastie.org/ or http://paste.debian.net/ (the latter is useful for other things beside Debian) or maybe something like http://bitbucket.net/ (or http://github.com/ , whose underlying version control system is somewhat harder to use for many beginners.).
On Friday 11 Mar 2011 14:02:59 Narasimha Madineedi wrote: > Hi, > > I have 2 shell scripts which runs parallely. > And each script runs 2 child processes simultaniously one after the > another. i have given timeout to run 8hrs for each shell script. > if it exceeds time limit it has to kill the child processes of the process > which exceeds time limit but its killing all the child processes of the > other script also. > Well, I have not done a lot of multi-processing (in UNIX or alternatively in cygwin, I presume) in shell, and it seems to be very painful (as most any moderately "serious" programming is in shell.). I would really suggest you port your script to Perl or a similar language, which allow for more robust programming. If you are interested, there are some tutorials on various UNIX system paradigms here: http://users.actcom.co.il/~choo/lupg/ They are written in C, but should be easy to translate to Perl with some help from http://perldoc.perl.org/perlipc.html [PerlIPC] I have not read most of them, but I can attest for the author's competency and knowledge. The canonical reference about UNIX fundamentals is considered "Advanced Programming in the UNIX Environment" (or "APUE" or sometimes "Stevens'" for short): * http://www.apuebook.com/ * http://www.amazon.com/dp/0201433079 * http://en.wikipedia.org/wiki/W._Richard_Stevens I should note that I have only really started reading it now, and it's a large book which is very condensed. Good luck! Regards, Shlomi Fish [PerlIPC] - one note about PerlIPC is that the style of most of its code is archaic and exhibits many "Ancient Perl" paradigms. Last time I asked the perl5-porters which ones should be fixed it started an entire "colour of the bikeshed" (see http://en.wikipedia.org/wiki/Parkinson%27s_Law_of_Triviality ) argument about whether or not the perl code in the perl*.pod should be "modernised" so to speak. -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ My Public Domain Photos - http://www.flickr.com/photos/shlomif/ There is no IGLU Cabal. The problem of founding an IGLU Cabal has been proven, in a surprise move, to be equivalent to the question of existence of God, fully-tolerant religions and NP-complete oracles. -- Omer Zak Please reply to list if it's a mailing list post - http://shlom.in/reply . -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
