NPROC(1)                         User Commands                        NPROC(1)

NAME
       nproc - print the number of processing units available

SYNOPSIS
       nproc [OPTION]...

DESCRIPTION
       Print the number of processing units available to the current process,
       which may be less than the number of online processors.  If the
       'OMP_NUM_THREADS' or 'OMP_THREAD_LIMIT' environment variables are set,
       then they will determine the minimum and maximum returned value
       respectively.

       --all  print the number of installed processors, disregarding any
              OpenMP environment variables, or CPU quotas.

       --ignore=N
              if possible, exclude N processing units.  The result is
              guaranteed to be at least 1.

       --help display this help and exit

       --version
              output version information and exit

AUTHOR
       Written by Giuseppe Scrivano.

REPORTING BUGS
       Report bugs to: bug-coreutils@gnu.org
       GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
       General help using GNU software: <https://www.gnu.org/gethelp/>
       Report any translation bugs to <https://translationproject.org/team/>

COPYRIGHT
       Copyright (C) 2026 Free Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       Full documentation <https://www.gnu.org/software/coreutils/nproc>
       or available locally via: info '(coreutils) nproc invocation'

GNU coreutils 9.10               February 2026                        NPROC(1)