nproc - Man Page

print the number of processing units available

Examples (TL;DR)


nproc [OPTION]...


Print the number of processing units available to the current process, which may be less than the number of online processors


print the number of installed processors


if possible, exclude N processing units


display this help and exit


output version information and exit


Written by Giuseppe Scrivano.

Reporting Bugs

GNU coreutils online help: <>
Report any translation bugs to <>

See Also

Full documentation <>
or available locally via: info '(coreutils) nproc invocation'

Referenced By

dkms(8), get_nprocs(3), sched_setaffinity(2).

January 2024 GNU coreutils 9.4