This function works even if the process has already finished.
ps_pid(p = ps_handle())Process id.
Other process handle functions:
ps_children(),
ps_cmdline(),
ps_connections(),
ps_cpu_times(),
ps_create_time(),
ps_cwd(),
ps_descent(),
ps_environ(),
ps_exe(),
ps_handle(),
ps_interrupt(),
ps_is_running(),
ps_kill(),
ps_memory_info(),
ps_name(),
ps_num_fds(),
ps_num_threads(),
ps_open_files(),
ps_ppid(),
ps_resume(),
ps_send_signal(),
ps_shared_libs(),
ps_status(),
ps_suspend(),
ps_terminal(),
ps_terminate(),
ps_uids(),
ps_username()
p <- ps_handle()
p
#> <ps::ps_handle> PID=4139632, NAME=R, AT=2025-10-29 18:06:27.39
ps_pid(p)
#> [1] 4139632
ps_pid(p) == Sys.getpid()
#> [1] TRUE