You can display detailed information about the processes that are listed in the /proc directory by using process commands. The /proc directory is also known as the process file system (PROCFS). Images of active processes are stored in the PROCFS by their process ID number.
The following process commands display details about a process in the /proc directory. The prun and pstop commands start and stop a process:
Displays process credential information
Reports fstat and fcntl information for open files in a process
Displays /proc tracing flags, pending signals and held signals, and other status information
Lists the dynamic libraries that are linked into a process
Displays the address space map of each process
Starts each process
Lists the signal actions and handlers of each process
Displays a hex+symbolic stack trace for each lightweight process in each process
Stops each process
Times a process by using microstate accounting
Displays the process trees that contain the process
Displays status information after a process terminates
Displays the current working directory for a process
The process tools are similar to some options of the ps command, except that the output that is provided by these commands is more detailed.
The process commands perform the following tasks:
Display more information about processes, such as fstat and fcntl, working directories, and trees of parent and child processes
Provide control over processes by allowing users to terminate or resume them
The pldd and pstack commands stop target processes to inspect and extract information.
For more information, see the proc(1) man page.