NPROC(1) NPROC(1) nproc - print the number of processing units available nproc []... 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 --version . : bug-coreutils@gnu.org coreutils : : Copyright (C) 2026 Free Software Foundation, Inc. 3+: 3 . : . , . ,,info '(coreutils) nproc invocation'" ; 3 . . , - TODO <>. coreutils 9.11 2026 NPROC(1)