ulimit - get and set user limits
The ulimit() call will get or set some limit for the
calling process. The
cmd argument can have one of the following
Return the limit on the size of a file, in units of 512 bytes.
Set the limit on the size of a file.
(Not implemented for Linux.) Return the maximum possible address of the data segment.
(Implemented but no symbolic constant provided.) Return the maximum number of files that the calling process can open.
On success, ulimit() returns a nonnegative value. On
error, -1 is returned, and
errno is set appropriately.
An unprivileged process tried to increase a limit.
This page is part of release 5.10 of the Linux
project. A description of the project, information about reporting bugs,
and the latest version of this page, can be found at