Filter by priority error and above journalctl

Only err/crit/alert/emerg from current boot; -p takes a range too (e.g. -p warning..err)

journalctl -p err -b --no-pager

#journalctl #debug #troubleshooting

more journalctl all 12 commands →

Match by raw systemd unit field journalctl _SYSTEMD_UNIT=sshd.service --since today Combine field filters with OR journalctl _PID=1 + _COMM=sshd -o short-iso Regex grep across messages journalctl --grep='oom|out of memory' --case-sensitive=false -b Verbose output with all fields journalctl -u <name> -o verbose -n 1 List boots and read previous boot journalctl --list-boots && journalctl -b -1 -p warning