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ulimit(C)


ulimit -- set or report file-size limit

Syntax

ulimit [ -f ] [ blocks ]

Description

ulimit sets or reports the file-size writing limit on the shell and its child processes. The -f option sets the file-size limit in 512-byte blocks. If no blocks argument is provided, ulimit reports the file-size limit. Only root can increase the limit.

ulimit without arguments will either report the file-size limit as a decimal integer, or the message unlimited.

Examples

To set the file-size limit to 25600 bytes:

ulimit -f 50

Limitations

ulimit is implemented as a built-in command of the Korn and Bourne shells.

ulimit has no effect on the size of files that may be read.

See also

ksh(C), sh(C)

Standards conformance

ulimit is conformant with:

ISO/IEC DIS 9945-2:1992, Information technology - Portable Operating System Interface (POSIX) - Part 2: Shell and Utilities (IEEE Std 1003.2-1992);
X/Open CAE Specification, Commands and Utilities, Issue 4, 1992.

Notices

A version of ulimit that can handle files greater than 2GB is available in /u95/bin. See ulimit(1) for more information.
© 2005 The SCO Group, Inc. All rights reserved.
SCO OpenServer Release 6.0.0 -- 03 June 2005