This is the command ulimitposix that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
ulimit — set or report file size limit
SYNOPSIS
ulimit [−f] [blocks]
DESCRIPTION
The ulimit utility shall set or report the file-size writing limit imposed on files
written by the shell and its child processes (files of any size may be read). Only a
process with appropriate privileges can increase the limit.
OPTIONS
The ulimit utility shall conform to the Base Definitions volume of POSIX.1‐2008, Section
12.2, Utility Syntax Guidelines.
The following option shall be supported:
−f Set (or report, if no blocks operand is present), the file size limit in blocks.
The −f option shall also be the default case.
OPERANDS
The following operand shall be supported:
blocks The number of 512-byte blocks to use as the new file size limit.
STDIN
Not used.
INPUT FILES
None.
ENVIRONMENT VARIABLES
The following environment variables shall affect the execution of ulimit:
LANG Provide a default value for the internationalization variables that are unset or
null. (See the Base Definitions volume of POSIX.1‐2008, Section 8.2,
Internationalization Variables for the precedence of internationalization
variables used to determine the values of locale categories.)
LC_ALL If set to a non-empty string value, override the values of all the other
internationalization variables.
LC_CTYPE Determine the locale for the interpretation of sequences of bytes of text data
as characters (for example, single-byte as opposed to multi-byte characters in
arguments).
LC_MESSAGES
Determine the locale that should be used to affect the format and contents of
diagnostic messages written to standard error.
NLSPATH Determine the location of message catalogs for the processing of LC_MESSAGES.
ASYNCHRONOUS EVENTS
Default.
STDOUT
The standard output shall be used when no blocks operand is present. If the current number
of blocks is limited, the number of blocks in the current limit shall be written in the
following format:
"%d\n", <number of 512-byte blocks>
If there is no current limit on the number of blocks, in the POSIX locale the following
format shall be used:
"unlimited\n"
STDERR
The standard error shall be used only for diagnostic messages.
OUTPUT FILES
None.
EXTENDED DESCRIPTION
None.
EXIT STATUS
The following exit values shall be returned:
0 Successful completion.
>0 A request for a higher limit was rejected or an error occurred.
CONSEQUENCES OF ERRORS
Default.
The following sections are informative.
APPLICATION USAGE
Since ulimit affects the current shell execution environment, it is always provided as a
shell regular built-in. If it is called in a separate utility execution environment, such
as one of the following:
nohup ulimit −f 10000
env ulimit 10000
it does not affect the file size limit of the caller's environment.
Once a limit has been decreased by a process, it cannot be increased (unless appropriate
privileges are involved), even back to the original system limit.
EXAMPLES
Set the file size limit to 51200 bytes:
ulimit −f 100
RATIONALE
None.
FUTURE DIRECTIONS
None.
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