jhsdb:tldr:f268c

The command jhsdb clhsdb --pid ${pid} is used to launch the clhsdb tool in the jhsdb command-line debugger, with a specific process ID (pid) as an argument.

Here is a breakdown of the command:

• jhsdb: It is the command-line debugger tool for Java called "JVM HotSpot Debugging Tool". This tool provides various debugging features for the HotSpot JVM (Java Virtual Machine).
• clhsdb: It is one of the sub-commands of jhsdb. The clhsdb command stands for "Command Line HotSpot Serviceability Agent Debug Tool". It allows you to attach to a running Java process and collect various information and diagnostics.
• --pid ${pid}: The --pid option is used to specify the process ID of the Java process you want to attach to for debugging. ${pid} is a placeholder indicating that you need to replace it with the actual process ID of the Java process. The process ID can be obtained using other tools like jps (Java Virtual Machine Process Status Tool) or by checking the system process list.

Overall, this command helps you launch the clhsdb tool to debug a specific Java process by attaching it, allowing you to gather diagnostic and debugging information related to that process.