IO::ReStoreFH

Redirecting and restoring I/O streams is straightforward but a chore,
and can lead to strangely silent errors if you forget to restore STDOUT
or STDERR.

IO::ReStoreFH helps keep track of the present state of filehandles and
low-level file descriptors and restores them either explicitly or when
the IO::ReStoreFH object goes out of scope.

It uses the standard Perl filehandle duplication methods (via open) for
filehandles, and uses POSIX::dup and POSIX::dup2 for file descriptors.

File handles and descriptors are restored in the reverse order that they
are stored.

INSTALLATION

This is a Perl module distribution. It should be installed with whichever
tool you use to manage your installation of Perl, e.g. any of

 cpanm .
 cpan  .
 cpanp -i .

Consult http://www.cpan.org/modules/INSTALL.html for further instruction.
Should you wish to install this module manually, the procedure is

 perl Build.PL
 ./Build
 ./Build test
 ./Build install

COPYRIGHT AND LICENSE

This software is Copyright (c) 2012 by Smithsonian Astrophysical
Observatory.

This is free software, licensed under:

 The GNU General Public License, Version 3, June 2007

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