nproc(1)

nproc1

Print the number of processing units available

Usage

nproc [OPTION] ...

Overview

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

Releases

9 releases since Debian 6.0 (Squeeze); the text changed 8 times.

  1. 6.0
  2. 7
  3. 8
  4. 9
  5. 10
  6. 11
  7. 12
  8. 13
  9. Arch

Author

Written by Giuseppe Scrivano.

Reporting bugs

Report bugs to: <[email protected]>.
Report any translation bugs to: <https://translationproject.org/team/>.
GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>

From coreutils 9.12-2 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.