Commonly used · Observation system

du: Estimated directory occupancy

Syntax

du [-sh] [path…]

Options

-s

Summary (teaching default)

-h

Teaching Compatibility Options

Examples

du -sh projects

Usage and sandbox support

The sandbox summarizes the number of text characters, which is different from the actual block occupancy and byte units.

Hands-on exercises

• View project occupancyEveryday

Full documentation ↗

Related commands

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• pgrepCheck process number by name
• killSend signal to process
• pkillEnd process by name
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• freeView memory overview
• dfView file system space
• unameView kernel information
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• dateView date
• uptimeView running time
• nprocQuery the number of available processors
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• wView sessions and load
• ttyView terminal device name
• lscpuView CPU topology
• lsblkView block devices and file systems
• findmntView mounting relationships
• vmstatObserve memory and CPU indicators
• dmesgView kernel messages
• htopInteractively view process resources
• lsofView open files and ports
• fuserFind processes occupying files or ports
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• pidstatObserve process resource usage
• sarQuery system performance records
• niceSpecify process scheduling priority
• reniceAdjust the priority of existing processes
• ioniceAdjust I/O scheduling priority
• straceTracing system calls
• perfSampling performance events
• mountMount file system
• umountUnmount file system
• blkidQuery block device identifier
• fdiskView or edit partitions
• partedManage disk partitions
• mkfsCreate file system
• fsckCheck file system
• swaponEnable or query swap space
• swapoffDisable swap space
• lsmodList kernel modules
• modinfoQuery kernel module information
• modprobeLoad kernel module
• lsusbView USB device
• lspciView PCI device
• getconfView system configuration values