Linux CS

Commands #

Logging #

1. journalctl -f
   • [f]ollow new messages (like `tail -f` for traditional syslog):
2. journalctl -u kibana -f
3. journalctl –since now|today|yesterday|tomorrow –until YYYY-MM-DD HH:MM:SS
   • Filter messages within a time range (either timestamp or placeholders like “yesterday”):
4. journalctl _PID=pid
   • Show all messages by a specific process:

Process #

Files #

Users #

Kernel #

1. lsmod Shows the status of linux kernel modules.
2. modprobe Add or remove modules from the Linux kernel.