Linux provides commands that allow you to view system-related information, and with these commands, you can quickly get some necessary system information.

Machine Hardware Name

We can get the name of the machine’s hardware by the arch command:

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arch    # This is equivalent to uname -m

System Information

We can use the uname command plus some of the parameters it provides to get the system-related information:

All Information

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uname -a    # This is equivalent to uname --all

Hardware Platform

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uname -i    # This is equivalent to uname --hardware-platform

Hardware Name

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uname -m    # This is equivalent to uname --machine

Network Node Hostname

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uname -n    # This is equivalent to uname --nodename

Processor Type

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uname -p    # This is equivalent to uname --processor

Operating System

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uname -o    # This is equivalent to uname --operating-system

Kernel Release

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uname -r    # This is equivalent to uname --kernel-release

Kernel Name

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uname -s    # This is equivalent to uname --kernel-name

Kernel Version

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uname -v    # This is equivalent to uname --kernel-version

Available Processors

We can view the number of logical cpu cores available through the nproc command.

Current Process

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nproc

Installed Processors

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nproc --all

System Name

We can get the name of the current host through the hostname command:

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hostname

Numeric Host Identifier

We can get the identifier of the current host through the hostid command:

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hostid

System Uptime and Load

We can use the uptime command to get the system’s running time, the number of users logged in, the average load, and so on:

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uptime

References 21 System context, 21.2 arch: Print machine hardware name, 21.3 nproc: Print the number of available processors, 21.4 uname: Print system information, 21.5 hostname: Print or set system name, 21.6 hostid: Print numeric host identifier, 21.7 uptime: Print system uptime and load

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