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This section describes commands that print or change system-wide information.
| • date invocation: | Print or set system date and time. | |
| • arch invocation: | Print machine hardware name. | |
| • nproc invocation: | Print the number of processors. | |
| • uname invocation: | Print system information. | |
| • hostname invocation: | Print or set system name. | |
| • hostid invocation: | Print numeric host identifier. | |
| • uptime invocation: | Print system uptime and load. |