exit(0) versus exit(1) Post: 302119976

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LEARN ABOUT DEBIAN

rlock

RLOCK(1)						      General Commands Manual							  RLOCK(1)

NAME

       rlock - run program with a lockfile

SYNOPSIS

       rlock [options] lockfile program [args]

       rlock [options] lockfile -- program options [args]

DESCRIPTION

       rlock creates NFS safe lockfiles.  it can optionally run a program while holding the lock, ensuring lockfile removal on program exit.  if a
       program is specified to be run rlock will spawn a background thread to kept the lockfile 'fresh' by touching it at a regular interval.	in
       this  way a lease is maintained on the lockfile and other processes attempting to obtain the lock can determine that it is in use.  see the
       '--refresh' option for how to control the touch interval.  any other process trying to obtain a lock  will  automatically  remove  a  stale
       lockfile; a stale lockfile is one that is older than a certain age.  this age be controled via the '--max_age' option.

ENVIRONMENT

       LOCKFILE_DEBUG=1
	      causes internal actions of the library to be shown on STDERR.

DIAGNOSTICS

       rlock attempts to exit with the status of 'program' except where it cannot due to exceptional conditions.  in addition the message

       'RLOCK SUBCOMMAND FAILURE'

       will be printed on STDERR if 'program' exits with non-zero status.

AUTHOR

       lockfile was written by Ara T. Howard <ara.t.howard@noaa.gov>.

       This manual page was converted by Decklin Foster <decklin@red-bean.com> for the Debian project (but may be used by others).

								    2008-10-11								  RLOCK(1)

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