journald-monitor/README.md

go-journald-monitor

Runs journalctl and prints any lines that have appeared since the last time the program was run to stdout. The log cursor is saved in a file named lastCursor (or lastCursor-unit if run for a specific unit). If the program is being run for the first time (that is, with no known last cursor position), no output is printed and the cursor position is saved.

Arguments

-unit [unit name] This filters output to one specific systemd service.

Restrictions

Since the program simply calls the 'journalctl' process, 'journalctl' must be installed and usable (in the path) on the host.

Usage

Set this in a cron job to be automatically notified via email when a service prints any log output.