Commonly used · Observation system
nproc: Query the number of available processors
Syntax
nprocExamples
nprocUsage and sandbox support
Teaching fixed value 4, device information is not read.
Hands-on exercises
- Number clearing available CPUEveryday
Related commands
psView process listpgrepCheck process number by namekillSend signal to processpkillEnd process by nametopView system process snapshotfreeView memory overviewdfView file system spaceduEstimated directory usageunameView kernel informationwhoamiShow current useridView users and user groupshostnameView host namedateView dateuptimeView running timewhoView login sessionwView sessions and loadttyView terminal device namelscpuView CPU topologylsblkView block devices and file systemsfindmntView mounting relationshipsvmstatObserve memory and CPU indicatorsdmesgView kernel messageshtopInteractively view process resourceslsofView open files and portsfuserFind processes occupying files or portsiostatWatch the disk with the CPU indicatorpidstatObserve process resource usagesarQuery system performance recordsniceSpecify process scheduling priorityreniceAdjust the priority of existing processesioniceAdjust I/O scheduling prioritystraceTracing system callsperfSampling performance eventsmountMount file systemumountUnmount file systemblkidQuery block device identifierfdiskView or edit partitionspartedManage disk partitionsmkfsCreate file systemfsckCheck file systemswaponEnable or query swap spaceswapoffDisable swap spacelsmodList kernel modulesmodinfoQuery kernel module informationmodprobeLoad kernel modulelsusbView USB devicelspciView PCI devicegetconfView system configuration values