Nproc

nproc - Print the number of available processing units:

$ man nproc

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 nproc translation bugs to <https://translationproject.org/team/>

COPYRIGHT
       Copyright  ©  2018  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 per‐
       mitted by law.

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

See also

• Processors, cores & threads on this computer (Bash)