How can I retrieve detailed process information using PID in Go?

Retrieving Process Details Using PID in Go

Determining the details of a process from its process ID (PID) is a common task in system administration. In Go, while syscall.Getrusage() provides process information, it may not meet the specific requirements of retrieving process details.

To gather comprehensive information about a process, consider leveraging the BASH command ps -p $PID. This command returns valuable data such as:

• PID: The process identifier
• TTY: The controlling terminal, if any
• TIME: The CPU time utilized by the process since execution
• CMD: The command that initiated the process

Additionally, you can utilize the -o options flag to expand the information provided. For instance, to display a process's full command with arguments, user, group, and memory usage, execute:

ps -p $PID -o pid,vsz=MEMORY -o user,group=GROUP -o comm,args=ARGS

Remember to place args as the last option in the command to ensure readability in the console output. By applying these techniques, you can effectively retrieve detailed information about processes on your Linux system.

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