ulimit(1)						      General Commands Manual							 ulimit(1)

NAME

       ulimit - Sets or reports a resource limit

SYNOPSIS

       ulimit [-HSacdfmnstvw] [limit]

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       ulimit:	XCU5.0, XBD5.0

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

OPTIONS

       [Tru64  UNIX]	The  limits specified for the resources are hard limits.  A hard limit cannot be increased once it is set.  [Tru64 UNIX]
       The limits specified for the resources are soft limits.	A soft limit can be increased up to the value of the hard limit.   [Tru64  UNIX]
       Lists all of the current resource limits.  The limit operand is not permitted with this option.	[Tru64 UNIX]   The limit operand specifies
       the number of 512-byte blocks for core dumps.  [Tru64 UNIX]   The limit operand specifies the number of Kilobytes for the data  area.   The
       limit operand specifies the number of 512-byte blocks for files written by child processes (files of any size can be read).  [Tru64 UNIX]
       The limit operand specifies the number of Kilobytes for the size of physical memory.  [Tru64 UNIX]   The limit operand specifies the number
       of  file descriptors.  [Tru64 UNIX]   The limit operand specifies the number of Kilobytes for the stack area.  [Tru64 UNIX]   The limit op-
       erand specifies the number of seconds to be used by each process.  [Tru64 UNIX]	 The limit operand specifies the number of  Kilobytes  for
       virtual	memory.   This	option	is  supported only if RLIMIT_VMEM has been defined in /usr/include/sys/resource.h at compile-time.  [Tru64
       UNIX]   The limit operand specifies the number of Kilobytes for the swap area.  This option is  supported  only	if  RLIMIT_SWAP  has  been
       defined in /usr/include/sys/resource.h at compile-time.

OPERANDS

       If no options are specified, this is the number of 512 byte blocks to use as the new limit to file size. Otherwise, it is the limit applied
       to the resource indicatd by the option.

	      [Tru64 UNIX]   This operand is not allowed with the -a option.

	      If this operand is omitted, the current limit for the indicated resource is reported.

DESCRIPTION

       This command sets, or reports, the limit on the size of system resources, as indicated by the option.

       [Tru64 UNIX]   If neither the -H option nor the -S option is specified, the limit applies to both hard and soft limits.	 If  only  the	-a
       option is specified, soft limits are reported.

       If there is no limit on a resource, the limit is reported as unlimited.

NOTES

       The  ulimit command affects only the current execution environment, therefore it has no effect when run in a separate execution environment
       such as one of the following:

       nohup ulimit -f 10000 env ulimit 10000

RESTRICTIONS

       Once a limit has been decreased, only a user with superuser privileges may increase it, even back to its original value.

EXIT STATUS

       The following exit values are returned: Successful completion.  A request for a higher limit was rejected or an error occurred.

EXAMPLES

       To set the file size limit to 51,200 bytes, enter: ulimit -f 100 To report the current file size limit, enter: ulimit The following example
       displays all current resource limits: % ulimit -a

       time(seconds)	      unlimited  file(blocks)	       unlimited  data(kbytes)		131072	stack(kbytes)	      2048  memory(kbytes)
       84280 coredump(blocks)	  unlimited nofiles(descriptors) 4096 vmemory(kbytes)	   1048576

ENVIRONMENT VARIABLES

       The following environment variables affect the execution of ulimit: Provides a default value for the  internationalization  variables  that
       are  unset  or null. If LANG is unset or null, the corresponding value from the default locale is used.	If any of the internationalization
       variables contain an invalid setting, the utility behaves as if none of the variables had been defined.	 If  set  to  a  non-empty  string
       value,  overrides the values of all the other internationalization variables.  Determines the locale for the interpretation of sequences of
       bytes of text data as characters (for example, single-byte as opposed to multibyte characters in arguments).  Determines the locale for the
       format  and contents of diagnostic messages written to standard error.  Determines the location of message catalogues for the processing of
       LC_MESSAGES.

SEE ALSO

       Routines:  ulimit(3)

       Standards:  standards(5)

																	 ulimit(1)