The data file read is usually megabytes in size I keep all off the data and that would eat up a lot of RAM. I like that idea though if it was a smaller data set.
Jonathan Otsuka On Mar 7, 2012, at 2:11 PM, [email protected] wrote: > Ok, I think I understand better now. > > Since STDERR AND STDOUT both just direct to the console, and you essentially > want the work to be saved, > why not open a file handle for the work (and maybe one for the report), and > use STDOUT with some interface > questions (# Review report data (y/n)), to preview the report before you save > anything. > (I.e., send the report to STDOUT before saving a copy of it to the file > handle) > Then have a followup interface question to save or abort, or whatever seems > appropriate. > > Teal > > -----Original Message----- > From: Jonathan Otsuka > Sent: Mar 7, 2012 1:53 PM > To: "Kansas City Perl Mongers (kc.pm)" > Subject: Re: [Kc] say STDOUT and warn STDERR > > I am using getopt::long so I could add another parameter, but sometimes I > want to see the data before I save it to a file. > > I think I am going to change lines that I want to output to the screen if I > redirect STDOUT or not to: > > # since STDERR filehandle is already open for us > print STDERR "blah"; > > Instead of using: > > warn "blah"; > > Jonathan Otsuka > > On Mar 7, 2012, at 1:06 PM, Brian Hann <[email protected]> wrote: > >> If it's on the command line, you could use GetOpt::Long::Descriptive to set >> an optional filename argument for both the normal output and report output >> and then you wouldn't have to worry about wrangling output stream syntax >> when running the command. >> >> On Wed, Mar 7, 2012 at 1:02 PM, Jonathan Otsuka <[email protected]> wrote: >> I want the user to choose what to do with STDOUT and STDERR on CLI. >> >> Jonathan Otsuka >> >> On Mar 7, 2012, at 12:48 PM, Richard Allen <[email protected]> wrote: >> >>> You could pipe stderr in the shell seperatelyfrom stdout, but you can also >>> redirect it in perl >>> http://www.cs.cmu.edu/afs/cs/usr/rgs/mosaic/pl-exp-io.html >>> The second codesnippet under open has an example >>> On Mar 7, 2012 12:41 PM, "Jonathan Otsuka" <[email protected]> wrote: >>> I have a program that process/format a file then prints to STDOUT which I >>> may want to save/redirect to a file. I also create a report of the data >>> that was processed, but I don't want the report output sent to STDOUT and >>> was thinking of using warn since its output is to STDERR. Is there another >>> way or is this the best way? >>> >>> Jonathan Otsuka >>> _______________________________________________ >>> kc mailing list >>> [email protected] >>> http://mail.pm.org/mailman/listinfo/kc >>> _______________________________________________ >>> kc mailing list >>> [email protected] >>> http://mail.pm.org/mailman/listinfo/kc >> >> _______________________________________________ >> kc mailing list >> [email protected] >> http://mail.pm.org/mailman/listinfo/kc >> >> _______________________________________________ >> kc mailing list >> [email protected] >> http://mail.pm.org/mailman/listinfo/kc > _______________________________________________ > kc mailing list > [email protected] > http://mail.pm.org/mailman/listinfo/kc
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