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pvs:tldr:ef291
The command "pvs -o +${field_name}" is used to display the physical volume(s) information in the Linux operating system, with an additional specified field.
Here's a breakdown of each component of the command:
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"pvs" is the command that stands for "Physical Volume Show." It is used to display information about physical volumes, which are typically disk partitions that are used to create Volume Groups in Linux.
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"-o" is an option flag that specifies the output format of the command. In this case, it indicates that additional fields will be included in the output.
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"+" prefix before "${field_name}" specifies that the additional field to be displayed is a user-defined field. You should replace "${field_name}" with the actual name of the field you want to include in the output.
In summary, this command shows information about physical volumes, including an extra field specified by the user. You need to replace "${field_name}" with the desired field name for actual usage.