Name

ulimit

Synopsis

                     ulimit [options] [n]

Print the value of one or more resource limits or, if n is specified, set a resource limit to n. Resource limits can be either hard (-H) or soft (-S). By default, ulimit sets both limits or prints the soft limit. The options determine which resource is acted on. Values are in 1024-byte increments unless otherwise indicated.

Options

Consider all subsequent strings to be arguments, not options.

-a

Print all current limits.

-H

Hard resource limit.

-S

Soft resource limit.

Specific limits

These options limit specific resource sizes.

-c

Core files.

-d

Size of processes’ data segments.

-f

Size of shell-created files.

-l

Size of memory that the process can lock.

-m

Resident set size.

-n

Number of file descriptors. On many systems, this can’t be set.

-p

Pipe size, measured in blocks of 512 bytes.

-s

Stack size.

-t

Amount of CPU time, counted in seconds.

-u

Number of processes per user.

-v

Virtual memory used by shell.

Get Mac OS X Panther in a Nutshell, 2nd Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.