Core files in Linux

In Linux, the core file is related to the linux platform. Set the method for generating the core dump file: 1) Enter ulimit-c in the terminal. If the result is 0, it means that when the program crashes, the system cannot generate core dump. 2) use the ulimit-c unlimited command to enable the core dump function without limiting the size of the generated core dump file. If you need to limit the number, add a number limit. Ulimit-c 1024 3) by default, the file name generated by core dump is core, and it is in the current directory of the program. The new core overwrites the existing core. By modifying the/proc/sys/kernel/core_uses_pid file, you can use the pid of the process as the extension. The generated core file format is core. xxx, where xxx is pid 4) You can modify/proc/sys/kernel/core_pattern to control the location and format of the core file. For example, to generate all core files to the/corefile directory, the file name format is core-command name-pid-timestamp. echo "/corefile/core-% e-% p-% t">/proc/sys/kernel/core_pattern