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Location of core files in Linux

Some core files are in the executable file running directory, some core files are in system directory, depending on the system configuration.

Filename

By default, the core file name is core only, different OSs change it's name.

Abrt stores core files in /var/cache/abrt.

Apport stores core files in /var/crash.

Systemd updated /proc/sys/kernel/core_pattern as below.

$ cat /proc/sys/kernel/core_pattern
|/usr/lib/systemd/systemd-coredump %p %u %g %s %t %e

The core files in Linux can be found in /var/db/system/cores/, they can be removed if no debugging required.

Fedora store core files in /var/spool/abrt/ instead

Archlinux stores core files in /var/lib/systemd/coredump/