limit [ -hs ] [ resource [ limit ] ] ...
       Set  or  display  resource limits.  Unless the -s flag is given, the
       limit applies only the children of the shell.  If -s is given  with-
       out other arguments, the resource limits of the current shell is set
       to the previously set resource limits of the children.

       If  limit  is  not  specified, print the current limit placed on re-
       source, otherwise set the limit to the specified value.  If  the  -h
       flag  is  given,  use hard limits instead of soft limits.  If no re-
       source is given, print all limits.

       When looping over multiple resources, the shell will  abort  immedi-
       ately  if  it detects a badly formed argument.  However, if it fails
       to set a limit for some other reason it will continue trying to  set
       the remaining limits.

       resource can be one of:

       addressspace
              Maximum amount of address space used.
       aiomemorylocked
              Maximum amount of memory locked in RAM for AIO operations.
       aiooperations
              Maximum number of AIO operations.
       cachedthreads
              Maximum number of cached threads.
       coredumpsize
              Maximum size of a core dump.
       cputime
              Maximum CPU seconds per process.
       datasize
              Maximum data size (including stack) for each process.
       descriptors
              Maximum value for a file descriptor.
       filesize
              Largest single file allowed.
       kqueues
              Maximum number of kqueues allocated.
       maxproc
              Maximum number of processes.
       maxpthreads
              Maximum number of threads per process.
       memorylocked
              Maximum amount of memory locked in RAM.
       memoryuse
              Maximum resident set size.
       msgqueue
              Maximum number of bytes in POSIX message queues.
       posixlocks
              Maximum number of POSIX locks per user.
       pseudoterminals
              Maximum number of pseudo-terminals.
       resident
              Maximum resident set size.
       sigpending
              Maximum number of pending signals.
       sockbufsize
              Maximum size of all socket buffers.
       stacksize
              Maximum stack size for each process.
       swapsize
              Maximum amount of swap used.
       vmemorysize
              Maximum amount of virtual memory.

       Which  of these resource limits are available depends on the system.
       resource can be abbreviated to any unambiguous prefix.  It can  also
       be  an integer, which corresponds to the integer defined for the re-
       source by the operating system.

       If argument corresponds to a number which is out of the range of the
       resources configured into the shell, the shell will try to  read  or
       write  the limit anyway, and will report an error if this fails.  As
       the shell does not store such resources internally,  an  attempt  to
       set the limit will fail unless the -s option is present.

       limit is a number, with an optional scaling factor, as follows:

       nh     hours
       nk     kilobytes (default)
       nm     megabytes or minutes
       ng     gigabytes
       [mm:]ss
              minutes and seconds

       The  limit  command  is not made available by default when the shell
       starts in a mode emulating another shell.  It can be made  available
       with the command `zmodload -F zsh/rlimits b:limit'.
