man > nproc(1)

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

       --all  print the number of installed processors

       --ignore=N
              if possible, exclude N processing units

       --help display this help and exit

       --version
              output version information and exit

AUTHOR
       Written by Giuseppe Scrivano.

REPORTING BUGS
       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
       Report any translation bugs to <https://translationproject.org/team/>

COPYRIGHT
       Copyright  ©  2023 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 9.4                           January 2026                                    NPROC(1)