coredumpctl systemd Developer Zbigniew Jędrzejewski-Szmek zbyszek@in.waw.pl coredumpctl 1 coredumpctl Retrieve coredumps from the journal coredumpctl OPTIONS COMMAND PID|COMM|EXE|MATCH Description coredumpctl may be used to retrieve coredumps from systemd-journald8. Options The following options are understood: Do not print the column headers. Show information of a single coredump only, instead of listing all known coredumps. Print all possible data values the specified field takes in matching coredump entries of the journal. Write the core to . The following commands are understood: list List coredumps captured in the journal matching specified characteristics. If no command is specified, this is the implied default. info Show detailed information about coredumps captured in the journal. dump Extract the last coredump matching specified characteristics. The coredump will be written on standard output, unless an output file is specified with . gdb Invoke the GNU debugger on the last coredump matching specified characteristics. Matching A match can be: PID Process ID of the process that dumped core. An integer. COMM Name of the executable (matches ). Must not contain slashes. EXE Path to the executable (matches ). Must contain at least one slash. MATCH General journalctl predicates (see journalctl1). Must contain an equal sign. Exit status On success, 0 is returned; otherwise, a non-zero failure code is returned. Not finding any matching coredumps is treated as failure. Examples List all the coredumps of a program named foo # coredumpctl list foo Invoke gdb on the last coredump # coredumpctl gdb Show information about a process that dumped core, matching by its PID 6654 # coredumpctl info 6654 Extract the last coredump of /usr/bin/bar to a file named bar.coredump # coredumpctl -o bar.coredump dump /usr/bin/bar See Also systemd-coredump8, coredump.conf5, systemd-journald.service8, gdb1