From: invalid@invalid.invalid   
      
   "Carlos E.R."  writes:   
   > On 2026-01-20 18:37, Richard Kettlewell wrote:   
   >> "Carlos E.R."  writes:   
   >>> On 2026-01-20 09:37, Richard Kettlewell wrote:   
   >>>> "Carlos E.R."  writes:   
   >>>>> On 2026-01-20 00:05, Richard Kettlewell wrote:   
   >>>>>> Not 100% clear what you’re asking but wouldn’t journalctl --unit=   
   >>>>>> with the unit(s) you care about be sufficient?   
   >>>>>   
   >>>>> No. I have to provide all units for a report. I remove those that are   
   >>>>> private or irrelevant, like news.   
   >>>> Right, so all units except the ones you don’t care about. Same thing,   
   >>>> just phrased differently.   
   >>>   
   >>> Using units is impossible.   
   >>>   
   >>> cer@Telcontar:~> journalctl --field=_SYSTEMD_UNIT | wc -l   
   >>> 5433   
   >>> cer@Telcontar:~>   
   >>>   
   >>> Imagine the command line listing all those five thousand units.   
   >> I don’t have any trouble imagining it and nor does journalctl, which   
   >> empirically accepts command lines with 5000 -u options without   
   >> complaint. So I don’t see any justification for calling it impossible.   
   >   
   > That I have to find those thousand of units and type them.   
      
   No, you don’t. It’s a fairly simple bit of scripting. Or as already   
   suggested:   
      
   >> The sd_journal_... API looks fairly simple, you could probably write   
   >> your own program to filter entries in whatever way you like in just a   
   >> few lines.   
      
   You might not like either suggestion for whatever reason, but that   
   doesn’t make the problem insoluble.   
      
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