Systemd fixups

command.rec

@@ -286,7 +286,7 @@ shell: sh
 bin: journalctl
 tag: system
 
-aim: Find errors since a date
+aim: Find service errors in systemd since a date
 cmd: date=2027-01-01
 + journalctl --since=${date} --grep="EXT4-fs error"
 shell: sh
@@ -294,13 +294,22 @@ bin: journalctl
 tag: system
 
 aim: Limit the systemd's journal size to 2 gigabytes
-cmd: journalctl --vacuum-size=2G
+cmd: journalctl --disk-usage
++ journalctl --vacuum-size=2G
 + journalctl --disk-usage
 shell: sh
 bin: journalctl
 tag: system
 tag: logs
 
+aim: List enabled systemd services
+cmd: systemctl list-unit-files  --state enabled
+cmd: systemctl --user list-unit-files  --state enabled
+shell: sh
+bin: systemd
+tag: system
+tag: service
+
 aim: Log the fact that you've installed your own `dnsmasq` on your system to `journalctl`, so that you can determine why your system's broken later
 cmd: logger "Installed new dnsmasq"
 + sudo journalctl -f