CentOS 7.0 - man page for tk::exit (centos section 3)
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exit(3) User Contributed Perl Documentation exit(3)
Tk::exit - End the application
use Tk qw(exit);
Terminate the process, returning returnCode to the system as the exit status. If
returnCode isn't specified then it defaults to 0.
If calling "exit" from code invoked via a Tk callback then this Tk version of "exit"
cleans up more reliably than using the perl "exit".
Using "exit" from a forked process will terminate both the child process and the parent
process. As "Tk::exit" is imported by default one should use "CORE::exit" in the forked
perl v5.16.3 2014-06-10 exit(3)
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