coreadm man page on HP-UX

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coreadm(1M)							   coreadm(1M)

NAME
       coreadm - core file administration

SYNOPSIS
       pattern] pattern] option] option]

       [pid...]

       [pid...]

       [arguments]

       [pid...]

DESCRIPTION
       The  command is used for user space application core file management by
       specifying the name and the location of core files for abnormally  ter‐
       minating processes.  See core(4).

       The  command  can  be  used to control system wide and process specific
       core file placement.  The path and pattern is  used  by	the  operating
       system when generating a core file.

       The  first  form	 shown in can be used to control system wide core file
       settings or specify a  pattern  for  init(1M).	System	administration
       privilege is required to change global core file settings.  Global core
       file setting, including the setting for init(1M), is  preserved	across
       system reboot.

       Non-privileged users can change per-process core file settings for pro‐
       cesses owned by that user.  The real or the effective user  ID  of  the
       calling process must match the real or the saved user ID of the receiv‐
       ing process unless the effective user ID of the calling	process	 is  a
       user who as appropriate privileges.

       A  core file name pattern is a normal file system path name with embed‐
       ded variables, specified with a leading character,  that	 are  expanded
       from  values  in	 effect when a core file is generated by the operating
       system.	An expanded pattern over will be truncated to

       The possible pattern variables are:

   Options
       The following options are supported for

       Disable	      or enable the specified core  file  option.   The
		      and options can only be exercised with root priv‐
		      ilege.

		      The valid options for and are:

		      Allow (or disallow) core dumps using  the	 global
		      core pattern.

		      Allow  (or  disallow)  core  dumps using the per-
		      process core pattern.

		      Allow (or disallow) core dumps using  the	 global
		      core pattern for
					processes.

		      Allow  (or disallow) core dumps using the process
		      core pattern for
					processes.

       Set the global core file name pattern to pattern.
		      The pattern must start with an absolute path name
		      which exists and can contain any of the special %
		      variables described in the section.  This	 option
		      can only be exercised by the super-user.

       This  is identical to specifying a per-process pattern only that
       the setting is
		      applied  to  init(1M)  and  is  preserved	 across
		      reboot.

       Set the per-process core file name pattern to
		      pattern  for  each of the specified process-ID's.
		      The pattern can contain any of the special  vari‐
		      ables  described in and need not begin with If it
		      does not begin with the core file	 name  will  be
		      evaluated	 relative to the current working direc‐
		      tory at the time of core file creation.

		      This option can be used by  non-privileged  users
		      to specify core file settings for processes owned
		      by that user.  Super-users can apply  it	to  any
		      process.	 The  per-process  core	 file  will  be
		      inherited by the future child  processes	of  the
		      affected	processes.   See fork(2).  This option,
		      when invoked without a PID will  apply  the  set‐
		      tings  to the calling process (usually the invok‐
		      ing shell).

       This option is used in conjunction with
		      The option will  execute	the  command  specified
		      with  the	 per-process pattern that was specified
		      with

       This option can be used to enable or disable core file  creation
       for
		      the  target  process.   As an example, a user may
		      choose to add the disable in  the	 shell	startup
		      script  to  avoid	 creation of core files by that
		      user.

EXAMPLES
       The following examples assume  that  the	 user  has  appropriate
       privilege.

       1. To examine the current core file settings:

	  $ coreadm

			    global core file pattern:
			  init(1M) core file pattern:
				   global core dumps: disabled
			      per-process core dumps: enabled
			     global setid core dumps: disabled
			per-process setid core dumps: disabled

       2. Set  global  core  file  settings  to	 include process-ID and
	  machine name and place the core file in the location

	  $ coreadm -e global -g /mnt/cores/core.%p.%n

	      A process with PID 1777 on the machine breaker will  gen‐
	      erate  a	core  file  in as (in addition to the core file
	      generated in the CWD of PID 1777).

       3. Examine the per process core file  settings  for  process-IDs
	  1777 and 1778

	  $ coreadm 1777 1778
	  1777:	  core.%p.%u
	  1778:	  /nethome/gandalf/core/core.%f.%p.%t

       4. A user can disable creation of core files completely by spec‐
	  ifying in the shell startup file (for example,

	  $ coreadm -P disable $$
	  $ coreadm $$
	  1157:	 (Disabled)

WARNINGS
       The output format of may change	without	 notice.   Applications
       parsing	the output, should not rely on the compatibility of the
       output format between releases.

SEE ALSO
       umask(1), init(1M), coreadm(2), core(4).

								   coreadm(1M)
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