coredumpctl:tldr:55470

The command coredumpctl --output=${filename} dump ${program} is used to generate a core dump file for a specific program and save it with a specified filename.

Here's a breakdown of the different parts of the command:

1. coredumpctl: This is the command-line utility used for managing core dumps in systems that use systemd. It allows you to list, inspect, and manipulate core dump files.

2. --output=${filename}: This option specifies the output filename for the generated core dump file. The ${filename} is a placeholder that should be replaced with the desired name for the file. For example, if you want to save the core dump as "my_program.core", you would replace ${filename} with "my_program.core".

3. dump: This is the command or program for which you want to generate a core dump. Replace ${program} with the name of the desired program. For example, if you want to generate a core dump for a program called my_program, you would replace ${program} with "my_program".

By running this command, a core dump file will be generated for the specified program and saved using the provided filename. The core dump file contains a snapshot of the program's memory state at the time of the crash or exception, which can be useful for debugging and troubleshooting software issues.