How do I determine whether a filehandle is open?
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From: Frank Seitz on 11 Apr 2008 15:10 I didn't find it in the FAQ. How do I determine whether a filehandle (STDERR in my case) is open? Frank -- Dipl.-Inform. Frank Seitz; http://www.fseitz.de/ Anwendungen f�r Ihr Internet und Intranet Tel: 04103/180301; Fax: -02; Industriestr. 31, 22880 Wedel
From: nolo contendere on 11 Apr 2008 15:23 On Apr 11, 3:10 pm, Frank Seitz <devnull4...(a)web.de> wrote: > I didn't find it in the FAQ. > How do I determine whether a filehandle > (STDERR in my case) is open? if ( defined fileno STDERR ) { print STDERR "SOME DATA"; } else { warn "Error: STDERR is closed!\n"; }
From: Joost Diepenmaat on 11 Apr 2008 15:23 Frank Seitz <devnull4711(a)web.de> writes: > I didn't find it in the FAQ. > How do I determine whether a filehandle > (STDERR in my case) is open? see perldoc -f fileno -- Joost Diepenmaat | blog: http://joost.zeekat.nl/ | work: http://zeekat.nl/
From: Frank Seitz on 11 Apr 2008 15:32
nolo contendere wrote: > On Apr 11, 3:10 pm, Frank Seitz <devnull4...(a)web.de> wrote: > >>I didn't find it in the FAQ. >>How do I determine whether a filehandle >>(STDERR in my case) is open? > > if ( defined fileno STDERR ) { > print STDERR "SOME DATA"; > } > else { > warn "Error: STDERR is closed!\n"; > } Simon, Joost: Thank you! Frank -- Dipl.-Inform. Frank Seitz; http://www.fseitz.de/ Anwendungen f�r Ihr Internet und Intranet Tel: 04103/180301; Fax: -02; Industriestr. 31, 22880 Wedel |