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Log Stream (Journalctl equivalent in MacOS)

Note:

Below are macOS log command equivalents for the journalctl examples you provided.

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1. journalctl --since "2022-02-01"

macOS equivalent:

log show --start "2022-02-01"

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2. journalctl --since "2022-02-01 00:24:41" --until "2022-02-02"

macOS equivalent:

log show --start "2022-02-01 00:24:41" --end "2022-02-02"

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3. With output redirected to a log file

journalctl:

journalctl --since "2022-02-01 00:24:41" --until "2022-02-02" >> minio_error.log

Mac:

log show --start "2022-02-01 00:24:41" --end "2022-02-02" >> minio_error.log

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(Optional) Filtering log show to specific process/service (closest to -u servicename)

Example for filtering for MinIO:

log show --start "2022-02-01" --end "2022-02-02" \
  --predicate 'process == "minio"' >> minio_error.log

Generic predicate examples:

• contains text:

  --predicate 'eventMessage CONTAINS "error"'
  

• matches process & contains keyword:

  --predicate 'process == "minio" AND eventMessage CONTAINS "timeout"'
  

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If you want live streaming (equivalent of journalctl -f)

Tail live logs:

log stream

Tail live logs with process filter:

log stream --predicate 'process == "minio"'

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