Motivation and Context

Currently,zpool status lacks an option to exclude specific pools from output. Useful for hidingtest/backup/boot pools when monitoring systems with many pools.

Description

Adds-E flag to exclude specified pools from output. Takes comma-separated pool names and filters them out.
Example:zpool status -E tank,backup excludestank andbackup, showing all other pools.

How Has This Been Tested?

Manually tested exclusion from all pools and specific pools, edge cases (trailing commas, duplicate flags, invalid arguments), and combination with other flags.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Performance enhancement (non-breaking change which improves efficiency)
• Code cleanup (non-breaking change which makes code smaller or more readable)
• Quality assurance (non-breaking change which makes the code more robust against bugs)
• Breaking change (fix or feature that would cause existing functionality to change)
• Library ABI change (libzfs, libzfs_core, libnvpair, libuutil and libzfsbootenv)
• Documentation (a change to man pages or other documentation)

Checklist:

• My code follows the OpenZFScode style requirements.
• I have updated the documentation accordingly.
• I have read thecontributing document.
• I have addedtests to cover my changes.
• I have run the ZFS Test Suite with this change applied.
• All commit messages are properly formatted and containSigned-off-by.