gcore Man page

GCORE(1) GNU Development Tools GCORE(1)


gcore – Generate a core file of a running program


gcore [-o filename] pid


Generate a core dump of a running program with process ID pid.
Produced file is equivalent to a kernel produced core file as if the
process crashed (and if “ulimit -c” were used to set up an appropriate
core dump limit). Unlike after a crash, after gcore the program
remains running without any change.


-o filename
The optional argument filename specifies the file name where to put
the core dump. If not specified, the file name defaults to
core.pid, where pid is the running program process ID.


The full documentation for GDB is maintained as a Texinfo manual. If
the “info” and “gdb” programs and GDB’s Texinfo documentation are
properly installed at your site, the command

info gdb

should give you access to the complete manual.

Using GDB: A Guide to the GNU Source-Level Debugger, Richard M.
Stallman and Roland H. Pesch, July 1991.


Copyright (c) 1988-2016 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being “Free Software” and “Free Software Needs Free
Documentation”, with the Front-Cover Texts being “A GNU Manual,” and
with the Back-Cover Texts as in (a) below.

(a) The FSF’s Back-Cover Text is: “You are free to copy and modify this
GNU Manual. Buying copies from GNU Press supports the FSF in
developing GNU and promoting software freedom.”

gdb-7.11.1 2016-06-23 GCORE(1)

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