JoeDog::Plock - A PERL5 NFS locking utility.

ABSTRACT:
This is a autoloadable module which allows the programmer
to ensure there's only one running copy of his script. It
was designed for file locking on an NFS volume. Instead
of locking the file, it opens a port and removes the port
when the task is complete.
http://www.joedog.org/

COPYRIGHT
Plock.pm is copyright 2014 by Jeffrey Fulmer & Tim Funk
and it is covered by the GNU Public License. See COPYING
for more details.

INSTALLATION
JoeDog::Plock.pm was built using perl Make::Maker utility
If you are familiar with that utility you should have no
problem with this installation as it will be familiar:

$ perl Makefile.PL
$ make
$ make test
$ su
$ make install

USAGE

  use JoeDog::Plock;  

  my $lock = new JoeDog::Plock(55555);  
  if (! $lock->lock()) {  
    print "A copy of $0 is already running....\n";  
    exit(1);  
  }  

  # put your script here....  

  $lock->unlock();  
  exit;  

For greater detail, see: perldoc JoeDog::Plock.pm