Devel::Autoflush(3) User Contributed Perl Documentation Devel::Autoflush(3)NAME
Devel::Autoflush - Set autoflush from the command line
VERSION
This documentation describes version 0.05.
SYNOPSIS
perl -MDevel::Autoflush Makefile.PL
DESCRIPTION
This module is a hack to set autoflush for STDOUT and STDERR from the
command line or from "PERL5OPT" for code that needs it but doesn't have
it.
This often happens when prompting:
# guess.pl
print "Guess a number: ";
my $n = <STDIN>;
As long as the output is going to a terminal, the prompt is flushed
when STDIN is read. However, if the output is being piped, the print
statement will not automatically be flushed, no prompt will be seen and
the program will silently appear to hang while waiting for input. This
might happen with 'tee':
$ perl guess.pl | tee capture.out
Use Devel::Autoflush to work around this:
$ perl -MDevel::Autoflush guess.pl | tee capture.out
Or set it in "PERL5OPT":
$ export PERL5OPT=-MDevel::Autoflush
$ perl guess.pl | tee capture.out
BUGS
Please report any bugs or feature using the CPAN Request Tracker. Bugs
can be submitted through the web interface at
http://rt.cpan.org/Dist/Display.html?Queue=Devel-Autoflush
<http://rt.cpan.org/Dist/Display.html?Queue=Devel-Autoflush>
When submitting a bug or request, please include a test-file or a patch
to an existing test-file that illustrates the bug or desired feature.
SEE ALSO
ยท CPANPLUS::Internals::Utils::Autoflush -- same idea but STDOUT only
and only available as part of the full CPANPLUS distribution
AUTHOR
David A. Golden (DAGOLDEN)
COPYRIGHT AND LICENSE
Copyright (c) 2008-2009 by David A. Golden
Licensed under the Apache License, Version 2.0 (the "License"); you may
not use this file except in compliance with the License. You may
obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
<http://www.apache.org/licenses/LICENSE-2.0>
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied. See the License for the specific language governing
permissions and limitations under the License.
perl v5.14.2 2009-02-23 Devel::Autoflush(3)