Which utility (lnav or another) can do this?

[forthrin]

$ sudo brew services start dnsmasq
dnsmasq          error  2 root  ~/Library/LaunchAgents/homebrew.mxcl.dnsmasq.plist
$ why dnsmasq
(Shows most recent batch of log entries for dnsmasq, wherever they are stored)

$ mailq
Mail to hotchick@hotmail.com was not sent
$ why postfix
(Shows most recent batch of log entries for postfix, wherever they are stored)

[tstack]

lnav doesn't support this, but it sounds like a fine idea. We could add some default file paths to the log format definitions.

[forthrin]

Happy you got the very common case. Something doesn't work, and want to know why with minimal effort. However, factors vary:

• Path (One / Plethora)
• Format (Plain / Other)
• Size (Small / Huge)
• Speed (Terse / Flood)

So worst case, needle in haystack, can't use grep, slow response, and terminal's swamped.

Let me know when you have something to test. Think this will be a very popular feature.