Info Catalog coreutils: arch invocation coreutils: System context coreutils: uname invocation

coreutils: nproc invocation

 
 21.3 ‘nproc’: Print the number of available processors
 ======================================================
 
 Print the number of processing units available to the current process,
 which may be less than the number of online processors.  If this
 information is not accessible, then print the number of processors
 installed.  If the ‘OMP_NUM_THREADS’ or ‘OMP_THREAD_LIMIT’ environment
 variables are set, then they will determine the minimum and maximum
 returned value respectively.  The result is guaranteed to be greater
 than zero.  Synopsis:
 
      nproc [OPTION]
 
    The program accepts the following options.  Also see Common
 options.
 
 ‘--all’
      Print the number of installed processors on the system, which may
      be greater than the number online or available to the current
      process.  The ‘OMP_NUM_THREADS’ or ‘OMP_THREAD_LIMIT’ environment
      variables are not honored in this case.
 
 ‘--ignore=NUMBER’
      If possible, exclude this NUMBER of processing units.
 
    An exit status of zero indicates success, and a nonzero value
 indicates failure.
 

Info Catalog coreutils: arch invocation coreutils: System context coreutils: uname invocation