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CentOS 7.0 - man page for selectsaver (centos section 3pm)

SelectSaver(3pm)					 Perl Programmers Reference Guide					  SelectSaver(3pm)

NAME
SelectSaver - save and restore selected file handle
SYNOPSIS
use SelectSaver; { my $saver = SelectSaver->new(FILEHANDLE); # FILEHANDLE is selected } # previous handle is selected { my $saver = SelectSaver->new; # new handle may be selected, or not } # previous handle is selected
DESCRIPTION
A "SelectSaver" object contains a reference to the file handle that was selected when it was created. If its "new" method gets an extra parameter, then that parameter is selected; otherwise, the selected file handle remains unchanged. When a "SelectSaver" is destroyed, it re-selects the file handle that was selected when it was created. perl v5.16.3 2013-02-26 SelectSaver(3pm)