Re: capturing program output

open $FH, "myprogram here |";
[download]

I think that'll do what you want. The output of myprogram should be available on the $FH filehandle.

If I'm wrong, other's will correct me soon enough...

Comment on Re: capturing program output Download Code

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RE: Re: capturing program output by merlyn (Sage) on Aug 24, 2000 at 23:35 UTC
Too much money, err, too many dollar signs. You want `open FH, "myprogram here \|" or die "Cannot fork: $!"; ... while (<FH>) { ... look at $_ }` [download] -- Randal L. Schwartz, Perl hacker	[reply] [d/l]
RE: RE: Re: capturing program output by BlaisePascal (Monk) on Aug 24, 2000 at 23:38 UTC
You are right, but I think it's really a matter of style... won't `open $file,"myprogram here \|" or die ...` work as well, placing the filehandle reference in `$file`? Thanks for catching the lack of error-checking...	[reply]
RE: RE: RE: Re: capturing program output by merlyn (Sage) on Aug 24, 2000 at 23:39 UTC
Only in perl 5.6, in which it's a new feature. 5.5 didn't do that. (Unless you pre-populated the variable with a `IO::Handle`-ish object.) And it has to be a variable that only has `undef` in it. Otherwise, it's treated as a symbolic reference, which may not succeed if you have "use strict refs" turned on. -- Randal L. Schwartz, Perl hacker	[reply]