limit(1)                                                       limit(1)

  limit

  NAME

    limit - limit resource usage

  SYNOPSIS

    limit [-h] [resource [maximum-use]]

  DESCRIPTION

    This command is a C-shell built-in command.

    The limit(1) command restricts the consumption by the current process and
    each process it creates so that none of the processes can individually
    exceed maximum-use on the specified resource. If no maximum-use is given,
    the current limit is printed; if no resource is given, all limitations are
    given. If the -h flag is given, the hard limits are used instead of the
    current limits. The hard limits impose a ceiling on the values of the
    current limits. Only a user with appropriate permissions can raise the
    hard limits, but any user can lower or raise the current limits within the
    established range.

    Controllable resources currently include:

    cputime
        The maximum number of cpu-seconds to be used by each process.

    filesize
        The largest single file that can be created.

    datasize
        The maximum growth of the data+stack region through sbrk(3) beyond the
        end of the program text.

    stacksize
        The maximum size of the automatically extended stack region.

    coredumpsize
        The size of the largest core dump that will be created.

    memoryuse
        The maximum amount of physical memory a process can have allocated to
        it at a given time.

    The maximum-use argument can be given as a (floating point or integer)
    number followed by a scale factor. For all limits other than cputime, the
    default scale is 'k' or 'kilobytes' (1024 bytes); a scale factor of 'm' or
    'megabytes' can also be used. For cputime, the default scaling is
    'seconds', while 'm' for minutes or 'h' for hours, or a time of the form
    'mm:ss' (giving minutes and seconds) can be used.

    For both resource names and scale factors, unambiguous prefixes of the
    names suffice.