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NAME Tee - Pure Perl emulation of GNU tee VERSION This documentation refers to version 0.13_51 SYNOPSIS # from Perl use Tee; tee( $command, @files ); # from the command line $ cat README.txt | ptee COPY.txt DESCRIPTION The "Tee" distribution provides the ptee program, a pure Perl emulation of the standard GNU tool "tee". It is designed to be a platform-independent replacement for operating systems without a native "tee" program. As with "tee", it passes input received on STDIN through to STDOUT while also writing a copy of the input to one or more files. By default, files will be overwritten. Unlike "tee", "ptee" does not support ignoring interrupts, as signal handling is not sufficiently portable. The "Tee" module provides a convenience function that may be used in place of "system()" to redirect commands through "ptee". USAGE "tee()" tee( $command, @filenames ); tee( $command, \%options, @filenames ); Executes the given command via "system()", but pipes it through ptee to copy output to the list of files. Unlike with "system()", the command must be a string as the command shell is used for redirection and piping. The return value of "system()" is passed through, but reflects the success of the "ptee" command, which isn't very useful. The second argument may be a hash-reference of options. Recognized options include: * stderr -- redirects STDERR to STDOUT before piping to ptee (default: false) * append -- passes the "-a" flag to ptee to append instead of overwriting (default: false) LIMITATIONS Because of the way that "Tee" uses pipes, it is limited to capturing a single input stream, either STDOUT alone or both STDOUT and STDERR combined. A good, portable alternative for capturing these streams from a command separately is IPC::Run3, though it does not allow passing it through to a terminal at the same time. SEE ALSO * ptee * IPC::Run3 * IO::Tee 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=Tee> 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. AUTHOR David A. Golden (DAGOLDEN) COPYRIGHT AND LICENSE Copyright (c) 2006-2008 by David A. Golden. All rights reserved. Licensed under Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. A copy of the License was distributed with this file or you may obtain a copy of the License from http://www.apache.org/licenses/LICENSE-2.0 Files produced as output though the use of this software, shall not be considered Derivative Works, but shall be considered the original work of the Licensor. 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.