GCORE(1) GNU Development Tools GCORE(1) (NAME) gcore - core (SYNOPSIS) gcore [-v | --version] [-h | --help] [-a] [-o prefix] [-d directory] pid1 [pid2...pidN] (DESCRIPTION) core dump pid1 pid2 . core gcore (crash) ( "ulimit -c" core dump ). gcore . (OPTIONS) -a (memory mappings). . GNU/Linux "use-coredump-filter" "dump-excluded-mappings" . -o prefix prefix core dump . prefix.pid pid gcore . prefix core . -d directory directory GDB gcore. . --help -h . --version -v . (ENVIRONMENT) (SEE ALSO) GDB Texinfo . "info" "gdb" Texinfo GDB info gdb . Using GDB: A Guide to the GNU Source-Level Debugger Richard M. Stallman Roland H. Pesch . (COPYRIGHT) (c) - Free Software Foundation, Inc. / (GNU Free Documentation License) . <> <> <> () . () FSF : <> gdb-17.2 2026-05-10 GCORE(1)