How to reduce a 5 second log extract with 3,576 entries to just the 498 you’re most interested in, using Notes and Search features in LogUI, and what they tell us about how macOS 26.5.2 launches a known app.
LogUI
Adds notes to log entries, which can be coupled with its search feature to assemble collations of entries of interest, as well as adding info on activities and events.
Structured data is common and essential in many situations. Despite prolonged attempts to structure text semantically, most that is indexed and searched has mark-up removed, and uses the lowest common denominator, plain text.
New version exports log statistics in CSV format for further analysis by Numbers, Excel and others. Here’s a demonstration of what can be done, including a comparison with ‘War and Peace’.
To check XProtect Remediator scans, you really need log records lasting at least 24 hours. What can you do if your Mac’s only run for 6-8 hours? Here’s how to use Logistician to help, and how you can cheat.
A rite of passage when reporting a bug to Apple, sysdiagnoses contain huge amounts of data, including a logarchive containing its recent log entries. What you can do with them, and their snags.
How to investigate an app that crashes when starting up, using log entries. Includes detailed instructions for one of the simplest adventures in the log, and a summary of code signature errors.
Two common problems with log: all the censored contents, which can make them meaningless, and the sheer number of entries. How to use logging preferences to tackle them.
For the first 17 years, Macs got by perfectly well without a command line. Apple’s server admin apps featured extensive GUIs, and saved admins from using Terminal. But now even Apple tells folk to practise for ClickFix.
How long should you expect your Mac’s log to retain entries? Evidence here suggests that anything beyond 5 days isn’t looking good, and expecting to retrieve those made more than 5 days ago is likely to fail.
The Eclectic Light Company 